(Reuters) – Europe’s drug regulator said on Thursday the COVID-19 vaccines approved in the European Union offered protection against all coronavirus variants, including Delta, but called for active monitoring by vaccine manufacturers to stay alert. “There have been a number of variants over the last months and we expect more,” […]
Asymptomatic infected individuals (and those infected with Alpha) had relatively high viral loads; samples from Alpha cases also had higher probability of viral culture positivity. Determining the infectiousness of individuals with COVID-19 requires considering degree of symptoms, time point within disease course, and whether the infection involves wild-type SARS-CoV-2 or […]
The CDC has officially classified the delta variant of the coronavirus as a “variant of concern” to monitor in the U.S. The variant, which was first identified in India and is also known as B.1.617.2, now accounts for 10% of cases in the U.S. and is spreading quickly. The variant led to […]
Key Points Genetic variants of SARS-CoV-2 have been emerging and circulating around the world throughout the COVID-19 pandemic. Viral mutations and variants in the United States are routinely monitored through sequence-based surveillance, laboratory studies, and epidemiological investigations. A US government interagency group developed a Variant Classification scheme that defines three […]
The highly infectious and potentially more deadly COVID-19 variant that originated in India is now the dominant strain in the United Kingdom, a trajectory health officials are working to prevent in the United States, top coronavirus expert Anthony Fauci, MD, said at a news conference Tuesday. Variant B.1.1.7 was previously the most […]
Even though more and more vaccines against the coronavirus are being administered all over the world, many countries are still battling with outbreaks and face difficulties providing help to those in need. One of those countries is Brazil. Here, they are facing a massive second wave outbreak, many daily deaths […]
NEW DELHI (Reuters) – India has recorded the world’s sharpest spike in coronavirus infections this month, with political and financial capitals New Delhi and Mumbai running out of hospital beds, oxygen and medicines. Scientists are studying what led to an unexpected surge, and particularly whether a variant of the novel […]
The coronavirus variant first detected in Brazil appears to be much more transmissible than other versions of the virus, a new study says. The study, first published in Science, also said the variant called P.1 might be able to evade immunity that people gained after previously being infected with coronavirus. Brazil […]
Details about the transmissibility and potential vaccine resistance of the P.1 coronavirus first identified in travelers from Brazil resulted in this week’s top trending clinical topic. The P.1 variant has been partially responsible for a deadly COVID-19 surge in Latin America. Research has identified mutations in the spike region used to […]
Two new studies have suggested that the B.1.1.7 variant of SARS-CoV-2 is more transmissible than other strains but found no evidence to suggest it led to more severe disease or caused worse symptoms. One of the studies found no evidence that B.1.1.7, sometimes known as the Kent or UK variant, […]
