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
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
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
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
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&…
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
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
2022 too short, too far: How the pandemic progressed
Down To Earth recaps the primary environment, health and developmental news from 2022
Fingers crossed: Experts cautious about variant evolution in the wake of China’s COVID-19 tsunami
Any new variant that emerges from the current surge in China may not have the same lethal ability as past ones. But one cannot rule out …
COVID: What we know about new omicron variant BF.7
BF.7 may well cause more serious illness in people with weaker immune systems.
Can China’s dynamic zero-COVID policy survive in the face of citizen protests, infectious variants?
China is recording more than 70,000 COVID-19 cases daily, a pandemic high for the country
COVID-19: Infections to rise in India in winter; more hospital resources needed
In the past 24 hours, India reported 1,946 new cases
New ‘highly infectious’ Omicron strains scare China
BF.7 variant was first detected in the northwestern region of China and has spread fast to the southern side
COVID-19: Is SARS-CoV-2 evolving differently after omicron
Cases are expected to rise with the advent of winter
COVID-19: Time to watch out for BF.7
For almost a year now, omicron and its lineages and sub-lineages have dominated the global COVID-19 variant map
Patients unaware of omicron infection, may be contributing to COVID-19 spread: Report
Study finds 56% people were unaware of infection status
COVID-19 surge in Delhi: 8-10 deaths every day, doctors recommend masks, booster dose
The recent spike in COVID-19 cases in Delhi can be attributed to the dominance of omicron sub-variant BA 2.75
A vaccine only for Omicron: Does India really need it?
Experts bat for considering benefits, economics carefully before spending on bivalent shots
COVID-19: BA.5 spread has differed from one country to another; here is why
Eric Topol, a US-based professor of molecular medicine, argues it is the immunity wall of a country that plays a decisive role in whether BA.…
Omicron’s BA.5 sub-variant is 4 times more vaccine-resistant
Study finds sub-lineage behind rise in COVID-19 cases in Europe, US
Clever coronavirus: Spike mutations help Omicron dodge antibodies
Research findings can help developers of vaccines, treatments understand what part of novel coronavirus to target
Experts suggest updating vaccines for new variants. How does it work & what are the challenges?
It is easier to update certain vaccine platforms than others, say experts
Update COVID-19 vaccine to target omicron variants: Advisory panel to USFDA
Unclear which combination of updated vaccine will work best; body expected to decide by July
COVID-19: Omicron's stealthy behaviour behind reinfections in people with immunity, says new study
People infected with initial strains had less sustained antibody response to omicron, scientists find
COVID-19: What’s driving Portugal’s high caseload, toll despite impressive vaccination rates?
Around 87% of Portugal’s population is fully vaccinated & over 65% received boosters