COVID variants
EU advises pre-flight Covid tests on passengers from China
The Chinese government and European health experts have said there is no pressing need for any blanket restrictions on travel
Delhi's R-value 2.1 this week, every COVID infected person infecting two others
The preliminary analysis by computational modelling was done by IIT-Madras
'It was scary': How South African scientists spotted the Omicron COVID variant
The samples, tested in the Lancet laboratory, all bore a large number of mutations, especially on the spike protein
India to tighten Covid testing for tourists amid new variant concerns
India, however, had not yet issued a notification, a senior government source said
No case of B.1.1.529 COVID-19 variant reported in India so far: Official sources
Newly identified COVID-19 variant is causing an increase in new COVID-19 infections in South Africa
WHO to meet on Friday to assess new COVID-19 variant detected in South Africa
The latest variant is the most heavily mutated version discovered so far
States, UTs told to tighten COVID-19 testing for international travellers
The instruction comes after reports of multiple cases of a new COVID-19 variant beinf reported in Botswana, South Africa and Hong Kong
The older you are, the more Covid antibodies you have, study finds
Researchers observed that those who received Pfizer BioNTech or AstraZeneca vaccine had antibody levels higher than infected individuals
COVID-19 AY.4.2 variant frequency too low to be of concern, says INSACOG
The INSACOG said that AY.4.2 variant of COVID-19 is less than 0.1 percent of all of all variants of concern and variant of interest
WHO warns new Mu variant of COVID-19 could be more vaccine-resistant
The new 'variant of interest' is being closely monitored, the UN health agency said