Captive Gorillas Test Positive for Coronavirus
Two gorillas at the San Diego Zoo Safari Park test positive for the coronavirus that causes COVID-19.
Two gorillas at the San Diego Zoo Safari Park test positive for the coronavirus that causes COVID-19.
When analyzed by stricter criteria than used earlier, the vaccine’s efficacy against all forms of COVID-19, including mild cases, dropped from about 78% to 50%.
Brazil is inching closer to having an authorized COVID-19 vaccine called CoronaVac, created by the Chinese company Sinovac.
"This needs to be a science-driven response," said Luciana Borio, who is on President-elect Joe Biden’s transition team.
As the COVID-19 pandemic surges, fueled in some places by new, fast-spreading variants, officials and public health experts are debating strategies for stretching limited supplies of vaccines. And vaccinemakers have been caught in the middle.
In southeastern England, the new variant of COVID-19 identified last month may be the harbinger of a new, particularly perilous phase of the pandemic.
Over the course of the pandemic, Edwine Barasa has worked with epidemiologists to reveal the surprisingly small impact of the disease in Kenya—so far.
Statements about vaccines in China and the United Kingdom have caused perplexity.
Novavax plans to apply for European regulatory approval for its vaccine candidate.
Vaccinemakers must now quickly decide how to handle the unblinding issue.
An analysis published by virologist Ravindra Gupta has become a crucial puzzle piece for researchers trying to understand the importance of the new SARS-CoV-2 variant found in the United Kingdom.
Severe allergy-like reactions in at least eight people who received the COVID-19 vaccine produced by Pfizer and BioNTech over the past 2 weeks may be due to polyethylene glycol (PEG), a compound in the packaging of the messenger RNA that forms the vaccine’s main ingredient, scientists say.