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One in five Americans are fully vaccinated, according to the latest data published by the Centers for Disease Control and Prevention. PROGRAMMING NOTE: CDC Director Rochelle Walensky is joining this year's Healthy Returns Summit lineup. She's joined by Eli Lilly CEO Dave Ricks, Pfizer Head of Vaccine R&D Kathrin Jansen and more. Be there.
As the pace of vaccinations pick up in the U.S., public health officials are warning highly contagious variants could stall the nation's progress. More on that below. Sam Meredith also has the latest on the AstraZeneca vaccine.
| | The first step to a potential universal coronavirus vaccine | Scientists at Walter Reed this week began human trials of a vaccine they say lays the groundwork for what Dr. Fauci has described as the holy grail for Covid vaccines: one that could broadly protect against variants of this coronavirus and even provide protection against some other viruses in the same family. The vaccine is different from those already on the market, expressing the spike protein multiple times around a protein called ferritin to induce a strong immune response. In the future, they say spikes from other coronaviruses could be swapped in to make the vaccine even more broadly protective.
- Meg Tirrell | | | | EU regulator finds possible link between AstraZeneca vaccine and blood clots | Europe's medicines regulator found a possible link between the coronavirus vaccine developed by AstraZeneca and the University of Oxford and rare blood clotting issues — though it said the benefits of getting the shot still outweigh its risks. Unusual blood clotting with low blood platelets will be added as a "very rare" side effect to the vaccine's product information, along with a slew of other possible adverse reactions, officials said. Regulators haven't yet identified specific risk factors that contributed to the phenomenon.
- Sam Meredith | | | | Some people with 'long Covid' say their symptoms ease after getting vaccine | Some people who have suffered from lingering and often debilitating symptoms months after their initial bout with Covid-19 tell me they are finding relief after getting vaccinated, puzzling doctors and other health experts. North Dakota resident Sheri Paulson, who had trouble getting out of bed for months after her Covid diagnosis, told me she felt better about five days after she got her first Pfizer shot in February. Figuring out why people feel better after getting the shots could provide new insights into what's behind the persistent symptoms as well as potential new treatments to fight it, experts say.
- Berkeley Lovelace Jr. | | | | 'Double mutant' Covid variant detected in California | Researchers at Stanford University's clinical virology laboratory recently detected several cases of a 'double mutant' Covid variant in California. The variant originated in India, where it's responsible for a recent surge in cases. It contains two mutations that have been seen before, but never together in the same strain. Experts say this new strain could be more transmissible because the mutations are in the receptor binding domain, where viruses latch on to our cells to enter our bodies.
- Richard Mendez | | | | CDC says B.1.1.7 is now the most common strain circulating in the U.S. | The highly contagious Covid variant first identified in the U.K., known as B.1.1.7, is "now the most common lineage circulating in the United States." CDC Director Dr. Rochelle Walensky told reporters this week. "Testing remains an important strategy to rapidly identify and isolate infectious individuals, including those with variants of concern," she said. Walensky also said hospitals are seeing more and more younger adults in their 30s and 40s admitted with severe cases of Covid-19 as the new variant spreads across the nation.
NOTE: Hear from Dr. Walensky on May 11th at the Healthy Returns Summit. Request an invitation.
- Berkeley Lovelace Jr. | |
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