Technologies
CDC and WHO recommend fully vaccinated should wear masks indoors. Here’s the latest
The CDC recently updated its stance to say fully vaccinated people should wear masks in certain areas. We’ll explain what’s going on.
The Centers for Disease Control and Prevention is recommending fully vaccinated people wear masks indoors again in some areas — including schools — it announced during a telebriefing Tuesday. This is different from its guidance earlier in July that said it’s safe for teachers and students who are fully vaccinated to skip the face masks. So why the sudden change? A spike in COVID-19 cases across the US caused by the highly contagious delta variant has resulted in the CDC updating its guidance for mask wearing.
The World Health Organization continues to recommend that to slow the rapidly spreading delta variant, everyone should continue to wear face masks in crowded areas, even people who are past the two-week mark after receiving their second vaccine dose, for example from Pfizer, Moderna or AstraZeneca.
Both the WHO and CDC agree that people who aren’t vaccinated should continue to wear face masks. But given the high rate of protection that vaccinated people have against the delta variant and other COVID strains, why are some medical experts in conflict about a barrier over your nose and mouth? We continue to update this story.
CDC guidance: Fully vaccinated should continue wearing masks in some areas
The CDC on Tuesday changed its guidance for mask wearing to say that vaccinated people should continue wearing masks indoors in certain areas of the country. This includes areas where COVID-19 cases are on the rise. It also changed the guidance for K-12 schools, saying everyone should wear a mask, regardless of vaccination status. Earlier this month, it said fully vaccinated teachers and students don’t need to wear masks inside the school.
Originally, the guidelines said those who are fully vaccinated can «resume activities without wearing masks or physically distancing» except where required, such as in planes and businesses. CDC Director Dr. Rochelle Walensky previously stuck to that guidance on NBC’s Today show on June 30, saying fully vaccinated people are protected from the delta variant.
The CDC warned CNN that there’s still a small chance fully vaccinated people can become infected with the new variant if they’re exposed. We’ve asked the CDC for comment.
What is the CDC’s new guidance for kids and teachers?
Those who aren’t vaccinated — ages 2 and up — need to wear a mask while inside but don’t have to when they’re outside. For fully vaccinated teachers and students, the CDC recommends continuing to wear masks inside the school building.
For child care programs, regarding schools with children younger than 12, universal mask use can be implemented, as children this age aren’t eligible for the COVID-19 vaccines yet. Mask mandates can also go into effect if coronavirus transmission is high in that community.
For schools that can’t provide adequate physical distancing, the CDC says «layered COVID-19 prevention strategies» should be put in place to protect kids and teachers who aren’t fully vaccinated.
Read more: In-person learning should be a priority for schools this fall, CDC says
Why are experts at odds over masks for vaccinated people?
In June, WHO officials repeated a longstanding recommendation that everyone should wear masks to stem the spread of the virus. Meanwhile, the CDC until Tuesday had been continuing to uphold its guidance that not all fully vaccinated Americans need to wear masks indoors or maintain social distancing. White House Chief Medical Adviser Dr. Anthony Fauci said that those who’ve had two doses of the vaccine should still «go the extra step» of wearing a mask when traveling to places with low vaccination rates.
A few days after the WHO recommended that people who have received the COVID-19 vaccine should continue wearing a face mask, Fauci explained why the advice differed from the CDC’s. «There’s a reason for that,» he said in a virtual White House press briefing. «The WHO is responsible for the planet as a whole. It’s different in the world in general from here in the United States.»
So, while the WHO is monitoring the pandemic around the world, with a majority of people unvaccinated, the CDC is responding to the situation in the US, where the vaccines have been shown to work quite effectively against hospitalization from the delta variant. Only 13.9% of the global population is fully vaccinated, according to vaccine tracker site Our World in Data. The US nearly quadruples that number: 49.7% of Americans are considered fully vaccinated as of July 4, according to the Mayo Clinic.
For Fauci and the CDC, the focus is on getting a greater number of Americans vaccinated in the first place. On July 4, Fauci said that 99.2% of COVID-related deaths last month involved unvaccinated people.
What is WHO’s position on mask wearing?
Wearing a mask consistently continues to be important, even for people who are vaccinated, a WHO official said during a press briefing in late June. «People cannot feel safe just because they had the two doses. They still need to protect themselves.»
Wearing masks in public places is essential to keep people from inhaling particles that will cause them to become sick, Dr. Maria Van Kerkhove, an American infectious disease epidemiologist, said during the same briefing.
While the Pfizer and Moderna vaccines are showing robust protection against variants, «breakthrough» infections may still sporadically occur. In a case in early June, a fully vaccinated woman in Napa, California, died from COVID-19. She was over 65 and was reported to have underlying medical conditions.
Why is the coronavirus delta variant serious?
The delta variant is the latest of new coronavirus variants and is the most contagious of the variants identified so far, according to the WHO. The delta variant has been identified in 96 countries so far and is spreading among the unvaccinated population, the organization said during the press conference.
«The delta variant is currently the greatest threat in the US to our attempt to eliminate COVID-19,» Fauci said during a White House press briefing on June 22.
Will there be new mask mandates or tighter restrictions?
Some countries have already begun tightening COVID-19 restrictions. For instance, four cities across Australia have returned to lockdown, including Sydney’s state of New South Wales. In the US, Los Angeles County is strongly recommending face masks indoors, regardless of whether someone has been vaccinated, though masks aren’t required in most places. Some countries within Africa and Asia — for instance, South Africa and Malaysia — have also moved into lockdown due to the delta variant spreading.
Some places never loosened mask mandates, such as airports and airlines. In the US, other public transportation facilities require masks, such as buses and trains.
For more information, here’s what you need to know about «long COVID» and how it’s treated. Also, read up on these COVID-19 vaccine side effects and important dos and don’ts of getting your COVID-19 vaccine.
The information contained in this article is for educational and informational purposes only and is not intended as health or medical advice. Always consult a physician or other qualified health provider regarding any questions you may have about a medical condition or health objectives.
Technologies
Google races to put Gemini at the center of Android before Apple’s AI reboot
Google is using its latest Android rollout to position Gemini as the AI layer across phones, Chrome, laptops and cars.
Google is using its latest Android rollout to make Gemini less of a chatbot and more of an operating layer across the phone, browser, car and laptop, just weeks before Apple is expected to show its own Gemini-powered Apple Intelligence reboot at WWDC.
Ahead of its Google I/O developer conference next week, the company previewed a number of Android updates, including AI-powered app automation, a smarter version of Chrome on Android, new tools for creators, a redesigned Android Auto experience, and a sweeping set of new security features.
Alphabet is counting on Gemini to help Google compete directly with OpenAI and Anthropic in the market for artificial intelligence models and services, while also serving as the AI backbone across its expansive portfolio of products, including Android. Meanwhile, Gemini is powering part of Apple’s new AI strategy, giving Google a role in the iPhone maker’s reset even as it races to prove its own version of personal AI on the phone is further along.
Sameer Samat, who oversees Google’s Android ecosystem, told CNBC that Google is rebuilding parts of Android around Gemini Intelligence to help users complete everyday tasks more easily.
“We’re transitioning from an operating system to an intelligence system,” he said.
As part of Tuesday’s announcements. Google said Gemini Intelligence will be able to move across apps, understand what’s on the screen and complete tasks that would normally require a user to jump between multiple services. That means Android is moving beyond the traditional assistant model, where users ask a question and get an answer, and acting more like an agent.
For instance, Google says Gemini can pull relevant information from Gmail, build shopping carts and book reservations. Samat gave the example of asking Gemini to look at the guest list for a barbecue, build a menu, add ingredients to an Instacart list and return for approval before checkout.
A big concern surrounding agentic AI involves software taking action on a user’s behalf without permissions. Samat said Gemini will come back to the user before completing a transaction, adding, “the human is always in the loop.”
Four months after announcing its Gemini deal with Google, Apple is under pressure to show a more capable version of Apple Intelligence, which has been a relative laggard on the market. Apple has long framed privacy, hardware integration and control of the user experience as its advantages.
Google’s Android push is designed to show it can bring AI deeper into the device experience while still giving users control over what Gemini can see, where it can act and when it needs confirmation.
The app automation features will roll out in waves, starting with the latest Samsung Galaxy and Google Pixel phones this summer, before expanding across more Android devices, including watches, cars, glasses and laptops later this year.
The company is also redesigning Android Auto around Gemini, turning the car into another major surface for its assistant. Android Auto is in more than 250 million cars, and Google says the new release includes its biggest maps update in a decade and Gemini-powered help with tasks like ordering dinner while driving.
Alphabet’s AI strategy has been embraced by Wall Street, which has pushed the company’s stock price up more than 140% in the past year, compared to Apple’s roughly 40% gain. Investors now want to see how Gemini can become more central to the products people use every day.
WATCH: Alphabet briefly tops Nvidia after report of $200 billion Anthropic cloud deal
Technologies
Waymo recalls 3,800 robotaxis after glitch allowed some vehicles to ‘drive into standing water’
Waymo issued a voluntary recall of about 3,800 of its robotaxis to fix software issues that could allow them to drive into flooded roadways.
Waymo is recalling about 3,800 robotaxis in the U.S. to fix software issues that could allow them to “drive onto a flooded roadway,” according to a letter on the National Highway Traffic Safety Administration’s website.
The voluntary recall is for Waymo vehicles that use the company’s fifth and sixth generation automated driving systems (or ADS), the U.S. auto safety regulator said in the letter posted Tuesday.
Waymo autonomous vehicles in Austin, Texas, were seen on camera driving onto a flooded street and stalling, requiring other drivers to navigate around them. It’s the latest example of a safety-related issue for the Alphabet-owned AV unit that’s rapidly bolstering its fleet of vehicles and entering new U.S. markets.
Waymo has drawn criticism for its vehicles failing to yield to school buses in Austin, and for the performance of its vehicles during widespread power outages in San Francisco in December, when robotaxis halted in traffic, causing gridlock.
The company said in a statement on Tuesday that it’s “identified an area of improvement regarding untraversable flooded lanes specific to higher-speed roadways,” and opted to file a “voluntary software recall” with the NHTSA.
“Waymo provides over half a million trips every week in some of the most challenging driving environments across the U.S., and safety is our primary priority,” the company said.
Waymo added that it’s working on “additional software safeguards” and has put “mitigations” in place, limiting where its robotaxis operate during extreme weather, so that they avoid “areas where flash flooding might occur” in periods of intense rain.
WATCH: Waymo launches new autonomous system in Chinese-made vehicle
Technologies
Qualcomm tumbles 13% as semiconductor stocks retreat from historic AI-fueled surge
Semiconductor equities reversed sharply after a broad AI-driven advance, with Qualcomm suffering its worst day since 2020 amid inflation concerns and rising oil prices.
Semiconductor stocks fell sharply on Tuesday, reversing course after an extensive rally that had expanded the artificial intelligence investment theme well past Nvidia and driven the industry to unprecedented levels.
Qualcomm plunged 13% and was on track for its steepest single-day decline since 2020. Intel shed 8%, while On Semiconductor and Skyworks Solutions each lost more than 6%. The iShares Semiconductor ETF, which benchmarks the overall sector, fell 5%.
The sell-off came after a key gauge of consumer prices came in above forecasts, and as conflict in Iran pushed crude oil higher—prompting investors to shift away from riskier assets.
The preceding advance had widened the AI opportunity set beyond longtime industry leader Nvidia, which for much of the past several years had largely carried the market to new peaks on its own.
Explosive appetite for central processing units, along with the graphics processing units that power large language models, has sent chipmakers to all-time highs.
Market participants are wagering that the shift from AI model training to autonomous agents will lift demand for additional AI hardware. Among the beneficiaries are memory chip producers, which are raising prices as supply remains tight.
Micron Technology slid 6%, and Sandisk cratered 8%. Sandisk’s stock has surged more than six times over since January.
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