Lifecycle of COVID-19: Yet another omicron sub-variant has countries on high alert

 XBB.1.5 shows how dynamic and wide-reaching SARS-CoV-2 variant evolution is, says expert

China’s definition of COVID deaths ‘very narrow’, country’s data ‘under-represents’ severity: WHO

Updated definition is narrow since it counts only those deaths caused by COVID-induced pneumonia or respiratory failures

The ‘kraken’ COVID variant XBB.1.5 is rising quickly in the US — here’s what it could mean for the UK

While XBB’s mutations enable it to evade our immune systems better than previous omicron subvariants, it doesn’t appear to be causing&…

Infographic: Do we need a booster dose?

Omicron, the most common COVID-19 strain in the world today, has dramatically reduced the efficacy and duration of vaccine protection 

FAQ on COVID-19 subvariant XBB.1.5: Why is it nicknamed ‘Kraken’?

Answers to questions like what is it, where is it prevalent and how does it differ from Omicron

How do you make a universal flu vaccine? A microbiologist explains

Success of mRNA vaccines for COVID-19 shows promise for their use in achieving the vision of an effective universal influenza vaccine

COVID-19: Did SARS-CoV-2 originate in raccoon dogs from Wuhan wet market? New data gives links

Meanwhile, Israel reports new COVID-19 variant — a combination of BA.1 and BA.2 subvariants of Omicron