(Reuters) - La contamination par le variant Omicron renforce l'immunité contre Delta, d'après une étude menée par des scientifiques sud-africains, qui ont examiné 33 personnes vaccinées et non ...

"It's the biggest experiment that's ever happened." In a stunningly short period of time, the delta variant has changed the course of the COVID-19 pandemic by evolving to become more transmissible ...

LOS ANGELES - As cases of the novel coronavirus and its delta variant continue to increase, a new projection model shows there are no signs of the hyper-contagious variant slowing down — foreshadowing ...

The Delta variant of Covid-19 is more contagious than other lineages, and is spreading rapidly in under-vaccinated populations. While vaccination is a matter of choice for adults, many children -- ...

Estimates show the variant accounts for over 51% of all new cases nationwide. A highly contagious variant of the novel coronavirus that was initially identified in India is now the dominant strain in ...

Johnson and Johnson assure que son vaccin Janssen à dose unique contre le Covid-19 est efficace contre le variant Delta, initialement repéré en Inde et particulièrement contagieux.SANDER KONING ...

The delta coronavirus variant surging across the United States appears to cause more severe illness and spread as easily as chickenpox, according to an internal document from the US Centers for ...

LOS ANGELES (KABC) -- While overall COVID-19 rates remain relatively low in Southern California amid continuing vaccination efforts, officials are increasingly worried about a growing threat from the ...

NEW YORK, N.Y. — Pfizer announced Wednesday that data shows a third dose of its COVID-19 vaccine can “strongly” boost protection against the highly transmissible delta variant. The pharmaceutical and ...

The Centers for Disease Control and Prevention listed the COVID-19 delta variant as one of its "variants of concern" (VOCs) on June 15. According to the CDC, VOCs can be more contagious, more ...

Les vaccins à ARN messager restent efficaces contre le variant indien du coronavirus, selon le président de la commission fédérale pour les vaccinations (archives).NIAID- RML/NATIONAL INSTITUTES O ...