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Third dose of Pfizer vaccine boosts antibodies up to 11-fold against the Indian ‘Delta’ variant as study finds efficacy of standard two shots drops to 84% after six months Pfizer released trial data for the third dose of the company’s COVID-19 vaccine during an earnings call Wednesday Pre-print study data finds that efficacy of Pfizer […]
The development of several new mRNA and viral vector vaccines in the space of a single year has changed how we understand vaccine hesitancy. As a gender and social justice researcher in the health humanities, I began tracking COVID-19 vaccine hesitancy in the spring of 2020. My research assistant and I analyzed debates as they […]
Editor’s note: Find the latest COVID-19 news and guidance in Medscape’s Coronavirus Resource Center. Despite concerns of a spreading delta variant of the coronavirus, the CDC has no plans to walk back its guidance that fully vaccinated people can skip the mask when indoors. In May, the CDC said that people who are fully vaccinated […]
Two doses of CoronaVac are safe and provoke a strong antibody response among children and adolescents aged 3-17 years, according to a randomised controlled trial of 550 young people published in The Lancet Infectious Diseases journal. More than 96% of children and adolescents who received two doses of the vaccine—manufactured by Sinovac—developed antibodies against SARS-CoV-2. […]
Thrown off-stride to reach its COVID-19 vaccination goal, the Biden administration is sending A-list officials across the country, devising ads for niche markets and enlisting community organizers to persuade unvaccinated people to get a shot. The strategy has the trappings of a political campaign, complete with data crunching to identify groups that can be won […]
With the rollout of COVID-19 vaccines accelerating, people are increasingly asking which vaccine is best? Even if we tried to answer this question, defining which vaccine is “best” is not simple. Does that mean the vaccine better at protecting you from serious disease? The one that protects you from whichever variant is circulating near you? […]
Experts who sit on national vaccine advisory panels are asked to disclose any industry ties and other conflicts of interest. But an investigation published by The BMJ today finds that disclosure standards differ widely, often leaving the public in the dark. Investigative journalist Paul D Thacker looked at experts sitting on the covid-19 authorization committees […]
Smallpox has been eradicated from the face of the Earth following a highly effective, worldwide vaccination campaign. Paralytic poliomyelitis is no longer a problem in the U.S. because of development and use of effective vaccines against the poliovirus. In current times, millions of lives have been saved because of rapid deployment of effective vaccines against […]
University of Alabama at Birmingham researchers report additional preclinical evidence of the potency of a single-dose, intranasal COVID-19 vaccine candidate—AdCOVID—that was created by Altimmune Inc., a Maryland-based clinical-stage biopharmaceutical company. The UAB researchers, led by Fran Lund, Ph.D., in collaboration with Altimmune, have found that a single intranasal dose provided sterilizing immunity in the lungs […]
With COVID-19 vaccines rolling out more and more frequently across the United States, it seems like everyday health officials are discovering new possible symptoms of the vaccine. According to the Centers for Disease Control and Prevention (CDC), some of the most common side effects include pain, redness, and swelling at or around the injection point, as well […]