Early benchmarks from Denmark on infections and hospitalizations are providing grounds for guarded optimism that highly vaccinated countries might be able to weather the omicron wave.
The threat posed by the “highly mutated” Omicron variant shows what a “perilous and precarious” situation the world is in, the head of the World Health Organization (WHO) has said, as he warned that the pandemic would not end until every country has access to vaccines.
A spate of new studies on lab animals and human tissues are providing the first indication of why the Omicron variant causes milder disease than previous versions of the coronavirus.
In studies on mice and hamsters, Omicron produced less-damaging infections, often limited largely to the upper airway: the nose, throat and windpipe. The variant did much less harm to the lungs, where previous variants would often cause scarring and serious breathing difficulty.
In late November, more than 110 people gathered at a crowded Christmas party at a restaurant in Oslo, Norway. Most of the guests were fully vaccinated. One had returned from South Africa just a few days earlier and was unknowingly carrying the omicron variant of SARS-CoV-2.
Ultimately, about 70% of the partygoers were infected.
Scientists who traced this superspreader event concluded it was evidence that omicron was "highly transmissible" among fully vaccinated adults.
At least one person in the UK has died with the Omicron coronavirus variant, the prime minister has said.
Countries scrambling to prevent fresh Covid-19 outbreaks driven by the Omicron variant have been offered hope by a UK study that found booster jabs “massively” strengthen the body’s defences against the coronavirus.
WASHINGTON/BERLIN, Dec 2 (Reuters) - President Joe Biden on Thursday laid out his strategy to fight th
The CDC said Wednesday it has confirmed the first U.S. case of the new, heavily mutated coronavirus variant called omicron, which was detected in Northern California.
White House chief medical advisor Dr. Anthony Fauci said the patient, who was fully vaccinated, had just returned to the San Francisco area Nov. 22 after traveling in South Africa and tested positive Nov. 29.