Enlarge (credit: Diamond Shruumz)

After weeks of reports of severe illnesses across the country, the maker of Diamond Shruumz microdosing chocolates, gummies, and candy cones has finally issued a recall. It covers all lots and all flavors of all the brand's products.

The illnesses have been marked by several severe symptoms, which notably include seizures, loss of consciousness, and the need for intubation and intensive care. To date, there have been 39 people sickened, including 23 hospitalizations across 20 states, according to the Food and Drug Administration and the Centers for Disease Control and Prevention. The FDA first issued a warning on the brand's chocolate bars on June 7, when there were reports of eight cases, including six hospitalizations, in four states.

Diamond Shruumz's parent company, Prophet Premium Blends, said in the recall notice that it had received only two complaints about the products to date and, upon receiving those complaints, reviewed recent laboratory analyses (Certificates of Analysis) of its products. According to the company, those CoAs noted "higher than normal amounts of muscimol," which is one of two key compounds found in hallucinogenic Amanita mushrooms. Muscimol "could be a potential cause of symptoms consistent with those observed in persons who became ill after eating Diamond Shruumz products," the company said in the recall notice.

Enlarge / Al Michaels looks on prior to the game between the Minnesota Vikings and Philadelphia Eagles at Lincoln Financial Field on September 14, 2023, in Philadelphia, Pennsylvania. (credit: Getty Images)

On Wednesday, NBC announced plans to use an AI-generated clone of famous sports commentator Al Michaels' voice to narrate daily streaming video recaps of the 2024 Summer Olympics in Paris, which start on July 26. The AI-powered narration will feature in "Your Daily Olympic Recap on Peacock," NBC's streaming service. But this new, high-profile use of voice cloning worries critics, who say the technology may muscle out upcoming sports commentators by keeping old personas around forever.

NBC says it has created a "high-quality AI re-creation" of Michaels' voice, trained on Michaels' past NBC appearances to capture his distinctive delivery style.

The veteran broadcaster, revered in the sports commentator world for his iconic "Do you believe in miracles? Yes!" call during the 1980 Winter Olympics, has been covering sports on TV since 1971, including a high-profile run of play-by-play coverage of NFL football games for both ABC and NBC since the 1980s. NBC dropped him from NFL coverage in 2023, however, possibly due to his age.

Enlarge / A Diamond Shruumz chocolate bar, which comes in a variety of flavors. (credit: diamondshruumz.com)

The US Food and Drug Administration has identified a synthetic psychedelic compound as well as compounds from a potentially toxic plant in the Diamond Shruumz-brand microdosing candies linked to a growing number of severe illnesses nationwide that have included seizures, intubation, and admissions to intensive care units.

As of June 25, the case total has grown to 39, including 23 hospitalizations, across 20 states, the FDA and the Centers for Disease Control and Prevention reported.

It remains unclear what is in the candies and what may be causing the severe illnesses. Diamond Shruumz does not provide a full list of ingredients. The term "microdosing" and other marketing used by Diamond Shruumz suggests the candies contain a psychedelic compound, but the company does not name any. To figure it out, the FDA has been analyzing multiple samples of Diamond Shruumz-brand candies, including chocolates, gummies, and candy cones. On Tuesday, the FDA reported finding the synthetic psychedelic compound 4-AcO-DMT in the company's Dark Chocolate Bar and its Birthday Cake Chocolate Bar.

Enlarge (credit: Chris Ratcliffe/Bloomberg via Getty)

YouTube is in talks with record labels to license their songs for artificial intelligence tools that clone popular artists’ music, hoping to win over a skeptical industry with upfront payments.

The Google-owned video site needs labels’ content to legally train AI song generators, as it prepares to launch new tools this year, according to three people familiar with the matter.

The company has recently offered lump sums of cash to the major labels—Sony, Warner, and Universal—to try to convince more artists to allow their music to be used in training AI software, according to several people briefed on the talks.

Enlarge / The app lets you invoke ChatGPT from anywhere in the system with a keyboard shortcut, Spotlight-style. (credit: Samuel Axon)

OpenAI's official ChatGPT app for macOS is now available to all users for the first time, provided they're running macOS Sonoma or later.

It was previously being rolled out gradually to paid subscribers to ChatGPT's Plus premium plan.

The ChatGPT Mac app mostly acts as a desktop window version of the web app, allowing you to carry on back-and-forth prompt-and-response conversations. You can select between the GPT-3.5, GPT-4, and GPT-4o models. It also supports the more specialized GPTs available in the web version, including the DALL-E image generator and custom GPTs.

Enlarge (credit: Getty | RJ Sangosti)

After an MDMA therapy for post-traumatic stress disorder dramatically failed to impress Food and Drug Administration advisers earlier this month, researchers are moving forward with another psychedelic—a slow-release oral dose of the hallucinogenic drug ketamine—as a therapy for treatment-resistant depression.

In a mid-stage, randomized, placebo-controlled clinical trial, researchers tested slow-release ketamine pills, taken twice weekly. The trial, sponsored by New Zealand-based Douglas Pharmaceuticals, found ketamine to be safe compared with placebo. At the trial's highest dose, the treatment showed some efficacy against depression in patients who had previously tried an average of nearly five antidepressants without success, according to the results published Monday in Nature Medicine.

But the Phase II trial, which started with 231 participants, indicated that the pool of patients who may benefit from the treatment could be quite limited. The researchers behind the trial chose an unusual "enrichment" design to test the depression treatment. This was intended to thwart the high failure rates generally seen in trials for depression treatments, even in patients without treatment-resistant cases. But even after selecting patients who initially responded to ketamine, 59.5 percent of the enriched participants still dropped out of the trial before its completion, largely due to a lack of efficacy.

Enlarge / Michael Jackson in concert, 1986. Sony Music owns a large portion of publishing rights to Jackson's music. (credit: Getty Images)

Universal Music Group, Sony Music, and Warner Records have sued AI music-synthesis companies Udio and Suno for allegedly committing mass copyright infringement by using recordings owned by the labels to train music-generating AI models, reports Reuters. Udio and Suno can generate novel song recordings based on text-based descriptions of music (i.e., "a dubstep song about Linus Torvalds").

The lawsuits, filed in federal courts in New York and Massachusetts, claim that the AI companies' use of copyrighted material to train their systems could lead to AI-generated music that directly competes with and potentially devalues the work of human artists.

Like other generative AI models, both Udio and Suno (which we covered separately in April) rely on a broad selection of existing human-created artworks that teach a neural network the relationship between words in a written prompt and styles of music. The record labels correctly note that these companies have been deliberately vague about the sources of their training data.

Enlarge / Microsoft's 11th-edition Surface Pro, as exploded by iFixit. Despite adhesive holding in the screen and the fact that you need to remove the heatsink to get at the battery, it's still much more repairable than past Surfaces or competing tablets. (credit: iFixit)

For a long time, Microsoft's Surface hardware was difficult-to-impossible to open and repair, and devices as recent as 2019's Surface Pro 7 still managed a repairability score of just 1 out of 10 on iFixit's scale. 2017's original Surface Laptop needed to be physically sliced apart to access its internals, making it essentially impossible to try to fix the machine without destroying it.

But in recent years, partly due to pressure from shareholders and others, Microsoft has made an earnest effort to improve the repairability of its devices. The company has published detailed repair manuals and videos and has made changes to its hardware designs over the years to make it easier to open them without breaking them and easier to replace parts once you’re inside. Microsoft also sells some first-party parts for repairs, though not every part from every Surface is available, and Microsoft and iFixit have partnered to offer other parts as well.

Now, iFixit has torn apart the most recent Snapdragon X-powered Surface Pro and Surface Laptop devices and has mostly high praise for both devices in its preliminary teardown video. Both devices earn an 8 out of 10 on iFixit's repairability scale, thanks to Microsoft's first-party service manuals, the relative ease with which both devices can be opened, and clearly labeled internal components.

Enlarge (credit: Anthropic / Benj Edwards)

On Thursday, Anthropic announced Claude 3.5 Sonnet, its latest AI language model and the first in a new series of "3.5" models that build upon Claude 3, launched in March. Claude 3.5 can compose text, analyze data, and write code. It features a 200,000 token context window and is available now on the Claude website and through an API. Anthropic also introduced Artifacts, a new feature in the Claude interface that shows related work documents in a dedicated window.

So far, people outside of Anthropic seem impressed. "This model is really, really good," wrote independent AI researcher Simon Willison on X. "I think this is the new best overall model (and both faster and half the price of Opus, similar to the GPT-4 Turbo to GPT-4o jump)."

As we've written before, benchmarks for large language models (LLMs) are troublesome because they can be cherry-picked and often do not capture the feel and nuance of using a machine to generate outputs on almost any conceivable topic. But according to Anthropic, Claude 3.5 Sonnet matches or outperforms competitor models like GPT-4o and Gemini 1.5 Pro on certain benchmarks like MMLU (undergraduate level knowledge), GSM8K (grade school math), and HumanEval (coding).

Enlarge (credit: Diamond Shruumz)

Cases of illnesses linked to microdosing candies have more than doubled, with reports of seizures and the need for intubation, mechanical ventilation, and intensive care stays. But, there remains no recall of the products—microdosing chocolates, gummies, and candy cones by Diamond Shruumz—linked to the severe and life-threatening illnesses. In the latest update from the Food and Drug Administration late Tuesday, the agency said that it "has been in contact with the firm about a possible voluntary recall, but these discussions are still ongoing."

In the update, the FDA reported 26 cases across 16 states, up from 12 cases in eight states last week. Of the 26 reported cases, 25 sought medical care and 16 were hospitalized. No deaths have been reported.

Last week, the Centers for Disease Control and Prevention released a health alert about the candies. The agency noted that as of June 11, the people sickened after eating Diamond Shruumz candies presented to health care providers with a host of severe symptoms. Those include: central nervous system depression with sedation, seizures, muscle rigidity, clonus (abnormal reflex responses), tremor, abnormal heart rate (bradycardia or tachycardia), abnormal blood pressure (hypotension or hypertension), gastrointestinal effects (nausea, vomiting, or abdominal pain), skin flushing, diaphoresis (excessive sweating), and metabolic acidosis with increased anion gap (an acid-based disorder linked to poisonings).

Enlarge (credit: Microsoft)

For the vast majority of compatible PCs, Microsoft’s Windows 11 24H2 update still isn’t officially available as anything other than a preview (a revised version of the update is available to Windows Insiders again after briefly being pulled early last week). But Microsoft and most of the other big PC companies are releasing their first wave of Copilot+ PCs with Snapdragon X-series chips in them today, and those PCs are all shipping with the 24H2 update already installed.

For now, this means a bifurcated Windows 11 install base: one (the vast majority) that’s still mostly on version 23H2 and one (a tiny, Arm-powered minority) that’s running 24H2.

Although Microsoft hasn’t been specific about its release plans for Windows 11 24H2 to the wider user base, most PCs should still start getting the update later this fall. The Copilot+ parts won’t run on those current PCs, but they’ll still get new features and benefit from Microsoft’s work on the operating system’s underpinnings.

Enlarge (credit: Bandai)

Elden Ring was my first leap into FromSoftware titles (and Dark-Souls-like games generally), and I fell in deep. Over more than 200 hours, I ate up the cryptic lore, learned lots of timings, and came to appreciate the feeling of achievement through perseverance.

Months ago, in preparation for Elden Ring's expansion, Shadow of the Erdtree (also on PlayStation and Xbox, arriving June 21), I ditched the save file with which I had beaten the game and started over. I wanted to try out big swords and magic casting. I wanted to try a few new side quests. And I wanted to have a fresh experience with the game before Shadow arrived.

I have had a very fresh experience, in that this DLC has made me feel like I'm still in the first hour of my first game. Reader, this expansion is mopping the floor with me. It looked at my resume, which has "Elden Lord" as its most recent job title, and has tossed it into the slush pile. If you're wondering whether Shadow would, like Elden Ring, provide a different kind of challenge and offer, like the base game, easier paths for Souls newcomers: No, not really. At least not until you're already far along. This DLC is for people who beat Elden Ring, or all but beat it, and want capital-M More.

Enlarge (credit: Aurich Lawson)

As the Intel Mac era has wound down over the last couple of years, we've been painstakingly tracking the amount of software support that each outgoing model is getting. We did this to establish, with over 20 years' worth of hard data, whether Intel Mac owners were getting short shrift as Apple shifted its focus to Apple Silicon hardware and to software that leveraged Apple Silicon-exclusive capabilities.

So far, we've found that owners of Intel Macs made in the mid-to-late 2010s are definitely getting fewer major macOS updates and fewer years' worth of security updates than owners of Intel Macs made in the late 2000s and early 2010s but that these systems are still getting more generous support than old PowerPC Macs did after Apple switched to Intel's processors.

The good news with the macOS 15 Sequoia release is that Apple is dropping very few Intel Mac models this year, a much-needed pause that slows the steady acceleration of support-dropping we've seen over the last few macOS releases.

Enlarge (credit: Bloomberg / Contributor | Bloomberg)

Adobe prioritized profits while spending years ignoring numerous complaints from users struggling to cancel costly subscriptions without incurring hefty hidden fees, the US Federal Trade Commission (FTC) alleged in a lawsuit Monday.

According to the FTC, Adobe knew that canceling subscriptions was hard but determined that it would hurt revenue to make canceling any easier, so Adobe never changed the "convoluted" process. Even when the FTC launched a probe in 2022 specifically indicating that Adobe's practices may be illegal, Adobe did nothing to address the alleged harm to consumers, the FTC complaint noted. Adobe also "provides no refunds or only partial refunds to some subscribers who incur charges after an attempted, unsuccessful cancellation."

Adobe "repeatedly decided against rectifying some of Adobe’s unlawful practices because of the revenue implications," the FTC alleged, asking a jury to permanently block Adobe from continuing the seemingly deceptive practices.

Enlarge / Lars Fruergaard Jorgensen, chief executive officer Novo Nordisk A/S, during an interview at the company's headquarters in Bagsvaerd, Denmark, on Monday, June 12, 2023. (credit: Getty | Carsten Snejbjerg)

After some persuasion from Sen. Bernie Sanders (I-Vt.), the CEO of Novo Nordisk will testify before lawmakers later this year on the "outrageously high cost" of the company's diabetes and weight-loss drugs—Ozempic and Wegovy—in the US.

CEO Lars Jørgensen will appear before the Senate Committee on Health, Education, Labor, and Pensions (HELP), which is chaired by Sanders, in early September. The agreement came after a conversation with Sanders in which the CEO reportedly "reconsidered his position" and agreed to testify voluntarily. As such, Sanders has canceled a vote scheduled for June 18 on whether to subpoena Novo Nordisk to discuss its US prices, which are considerably higher than those of other countries.

The independent lawmaker has been working for months to pressure Novo Nordisk into lowering its prices and appearing before the committee. In April, Sanders sent Jørgensen a letter announcing an investigation into the prices and included a lengthy set of information requests. In May, the committee's investigation released a report suggesting that Novo Nordisk's current pricing threatens to "bankrupt our entire health care system."

Enlarge / Ten milligram tablets of the hyperactivity drug, Adderall, made by Shire Plc, is shown in a Cambridge, Massachusetts pharmacy Thursday, January 19, 2006. (credit: Getty | Jb Reed)

The Centers for Disease Control and Prevention on Thursday warned that a federal indictment of an allegedly fraudulent telehealth company may lead to a massive, nationwide disruption in access to ADHD medications—namely Adderall, but also other stimulants—and could possibly increase the risk of injuries and overdoses.

"A disruption involving this large telehealth company could impact as many as 30,000 to 50,000 patients ages 18 years and older across all 50 US states," the CDC wrote in its health alert.

The CDC warning came on the heels of an announcement from the Justice Department Thursday that federal agents had arrested two people in connection with an alleged scheme to illegally distribute Adderall and other stimulants through a subscription-based online telehealth company called Done Global.  The company's CEO and founder, Ruthia He, was arrested in Los Angeles, and its clinical president, David Brody, was arrested in San Rafael, California.

Enlarge / Recall is part of Microsoft's Copilot+ PC program. (credit: Microsoft)

Microsoft will be delaying its controversial Recall feature again, according to an updated blog post by Windows and Devices VP Pavan Davuluri. And when the feature does return "in the coming weeks," Davuluri writes, it will be as a preview available to PCs in the Windows Insider Program, the same public testing and validation pipeline that all other Windows features usually go through before being released to the general populace.

Recall is a new Windows 11 AI feature that will be available on PCs that meet the company's requirements for its "Copilot+ PC" program. Copilot+ PCs need at least 16GB of RAM, 256GB of storage, and a neural processing unit (NPU) capable of at least 40 trillion operations per second (TOPS). The first (and for a few months, only) PCs that will meet this requirement are all using Qualcomm's Snapdragon X Plus and X Elite Arm chips, with compatible Intel and AMD processors following later this year. Copilot+ PCs ship with other generative AI features, too, but Recall's widely publicized security problems have sucked most of the oxygen out of the room so far.

The Windows Insider preview of Recall will still require a PC that meets the Copilot+ requirements, though third-party scripts may be able to turn on Recall for PCs without the necessary hardware. We'll know more when Recall makes its reappearance.

Enlarge / Motion smoothing was making images uncanny and weird long before AI got here. (credit: Aurich Lawson | Getty Images | Roku)

Roku TV owners have been introduced to a number of annoyances recently through the software update pipeline. There was an arbitration-demanding terms of service that locked your TV until you agreed (or mailed a letter). There is the upcoming introduction of ads to the home screen. But the latest irritation hits some Roku owners right in the eyes.

Reports on Roku's community forums and on Reddit find owners of TCL HDTVs, on which Roku is a built-in OS, experiencing "motion smoothing" without having turned it on after updating to Roku OS 13. Some people are reporting that their TV never offered "Action Smoothing" before, but it is now displaying the results with no way to turn it off. Neither the TV's general settings, nor the specific settings available while content is playing, offer a way to turn it off, according to some users.

"Action smoothing" is Roku's name for video interpolation, or motion smoothing. The heart of motion smoothing is Motion Estimation Motion Compensation (MEMC). Fast-moving video, such as live sports or intense action scenes, can have a "juddery" feeling when shown on TVs at a lower frame rate. Motion smoothing uses MEMC hardware and algorithms to artificially boost the frame rate of a video signal by creating its best guess of what a frame between two existing frames would look like and then inserting it to boost the frame rate.

Enlarge / Diamond Shruumz's "extremely potent" infused cones in "sprinkles" flavor. (credit: Diamond Shruumz)

More people have reported severe poisonings in an ongoing outbreak marked by people seizing and needing to be intubated after consuming microdose candies made by Diamond Shruumz, the Food and Drug Administration reported Tuesday.

There are now at least 12 reported cases across eight states. All 12 people were ill enough to seek medical care, and 10 needed to be hospitalized. The symptoms reported so far include seizures, central nervous system depression (loss of consciousness, confusion, sleepiness), agitation, abnormal heart rates, hyper/hypotension, nausea, and vomiting, the FDA reported.

In Tuesday's update, the FDA also expanded the products linked to the illnesses. In addition to all flavors of Diamond Shruumz's Microdosing Chocolate Bars, the agency's warning now covers all flavors of the brand's Infused Cones and Micro Dose and Macro Dose Gummies.

Enlarge / Macs running a preview build of macOS 15 Sequoia. (credit: Apple)

We’ve written before about Apple’s handy virtualization framework in recent versions of macOS, which allows users of Apple Silicon Macs with sufficient RAM to easily set up macOS and Linux virtual machines using a number of lightweight third-party apps. This is useful for anyone who needs to test software in multiple macOS versions but doesn’t own a fleet of Mac hardware or multiple boot partitions. (Intel Macs support the virtualization framework, too, but only for Linux VMs, making it less useful.)

But up until now, you haven’t been able to sign into iCloud using macOS on a VM. This made the feature less useful for developers or users hoping to test iCloud features in macOS, or whose apps rely on some kind of syncing with iCloud, or people who just wanted easy access to their iCloud data from within a VM.

This limitation is going away in macOS 15 Sequoia, according to developer documentation that Apple released yesterday. As long as your host operating system is macOS 15 or newer and your guest operating system is macOS 15 or newer, VMs will now be able to sign into and use iCloud and other Apple ID-related services just as they would when running directly on the hardware.

Enlarge / He isn't using an iPhone, but some people talk to Siri like this.

On Monday, Apple premiered "Apple Intelligence" during a wide-ranging presentation at its annual Worldwide Developers Conference in Cupertino, California. However, the heart of its new tech, an array of Apple-developed AI models, was overshadowed by the announcement of ChatGPT integration into its device operating systems.

Since rumors of the partnership first emerged, we've seen confusion on social media about why Apple didn't develop a cutting-edge GPT-4-like chatbot internally. Despite Apple's year-long development of its own large language models (LLMs), many perceived the integration of ChatGPT (and opening the door for others, like Google Gemini) as a sign of Apple's lack of innovation.

"This is really strange. Surely Apple could train a very good competing LLM if they wanted? They've had a year," wrote AI developer Benjamin De Kraker on X. Elon Musk has also been grumbling about the OpenAI deal—and spreading misconceptions about it—saying things like, "It’s patently absurd that Apple isn’t smart enough to make their own AI, yet is somehow capable of ensuring that OpenAI will protect your security & privacy!"

Enlarge (credit: Getty | Yui Mok)

The strain of H5N1 bird flu isolated from a dairy worker in Texas was 100 percent fatal in ferrets used to model influenza illnesses in humans. However, the virus appeared inefficient at spreading via respiratory droplets, according to newly released study results from the Centers for Disease Control and Prevention.

The data confirms that H5N1 infections are significantly different from seasonal influenza viruses that circulate in humans. Those annual viruses make ferrets sick but are not deadly. They have also shown to be highly efficient at spreading via respiratory droplets, with 100 percent transmission rates in laboratory settings. In contrast, the strain from the Texas man (A/Texas/37/2024) appeared to have only a 33 percent transmission rate via respiratory droplets among ferrets.

"This suggests that A/Texas/37/2024-like viruses would need to undergo changes to spread efficiently by droplets through the air, such as from coughs and sneezes," the CDC said in its data summary. The agency went on to note that "efficient respiratory droplet spread, like what is seen with seasonal influenza viruses, is needed for sustained person-to-person spread to happen."

Enlarge / Virgin Galactic's VSS Unity spacecraft launches on Saturday. (credit: Virgin Galactic)

On Saturday, the VSS Unity space plane made its final flight, carrying four passengers to an altitude of 54.4 miles (87.5 km) above the New Mexico desert. The spacecraft will now be retired after just seven commercial space flights, all made within the last year.

Although the flight was characterized by its chief executive Michael Colglazier as a "celebratory moment" for Virgin Galactic, the company now finds itself at a crossroads.

After an impressive but brief flurry of spaceflight activity—seven human spaceflights in a year, even to suborbital space, is unprecedented for a private company—Virgin Galactic will now be grounded again for at least two years. That's because Colglazier and Virgin Galactic are betting it all on the development of a future "Delta class" of spaceships modeled on VSS Unity.

Enlarge / A Diamond Shruumz chocolate bar, which come in a variety of flavors. (credit: diamondshruumz.com)

Various federal and state health officials are sounding the alarm on Diamond Shruumz-brand Microdosing Chocolate Bars. The candy, said to be infused with mushrooms, has been linked to severe illnesses, including seizures, loss of consciousness, confusion, sleepiness, agitation, abnormal heart rates, hyper/hypotension, nausea, and vomiting, according to an outbreak alert released by the Food and Drug Administration on Friday.

So far, eight people across four states have been sickened—four in Arizona, two in Indiana, one in Nevada, and one in Pennsylvania, the FDA reported. Of the eight, six have been hospitalized.

"We are urging the public to use extreme caution due to the very serious effects of these products," Maureen Roland, director of the Banner Poison and Drug Information Center in Phoenix, said in a press release earlier this week.

Enlarge (credit: DuckDuckGo)

On Thursday, DuckDuckGo unveiled a new "AI Chat" service that allows users to converse with four mid-range large language models (LLMs) from OpenAI, Anthropic, Meta, and Mistral in an interface similar to ChatGPT while attempting to preserve privacy and anonymity. While the AI models involved can output inaccurate information readily, the site allows users to test different mid-range LLMs without having to install anything or sign up for an account.

DuckDuckGo's AI Chat currently features access to OpenAI's GPT-3.5 Turbo, Anthropic's Claude 3 Haiku, and two open source models, Meta's Llama 3 and Mistral's Mixtral 8x7B. The service is currently free to use within daily limits. Users can access AI Chat through the DuckDuckGo search engine, direct links to the site, or by using "!ai" or "!chat" shortcuts in the search field. AI Chat can also be disabled in the site's settings for users with accounts.

According to DuckDuckGo, chats on the service are anonymized, with metadata and IP address removed to prevent tracing back to individuals. The company states that chats are not used for AI model training, citing its privacy policy and terms of use.

Enlarge / An MMR and VAR vaccine ready for a pediatric vaccination at Kaiser Permanente East Medical offices in Denver in 2015. (credit: Getty | Joe Amon)

For years, the US Centers for Disease Control and Prevention has bluntly stated the truth: "Vaccines do not cause autism," the agency affirms on its website. Yet, nearly a quarter of Americans still don't believe it.

In an April 2024 survey by the Annenberg Public Policy Center (APPC) of the University of Pennsylvania, 24 percent of US adults denied or disputed that the CDC ever said that. Specifically, the survey asked them to assess the accuracy of the statement that the CDC has said there is no evidence linking vaccines to autism. Six percent called the statement "very inaccurate," and 18 percent said it was "somewhat inaccurate." An additional 3 percent responded that they were "not sure." Of the remaining 73 percent, only 41 percent considered it "very accurate," and 32 percent said it was "somewhat accurate."

The results are largely unchanged from responses in 2018 when survey respondents were asked the same question. In that year, 26 percent of adults reported that the statement was "very inaccurate" or "somewhat inaccurate."