Indian study finds big drop in Covid antibodies within 4 months of vaccination
Health officials say though they are studying the evolving science on booster doses, the priority is to fully immunise India's 944 million adults.
Up to two-thirds of Indians have Covid antibodies, study says
The study shows 'a ray of hope', says the Indian Council of Medical Research.
BioNTech produces 10 times more antibodies than China’s Sinovac, study shows
But researchers say people should still get vaccinated with Sinovac if there is no other option because some protection is always better than none.
Sweden sees first case of baby infected with Covid-19 in the womb
The baby was also found to have developed its own antibodies against the virus.
After Covid-19 infection health workers 83% protected, study shows
But researchers say early evidence from the next stage of the study suggests that some of these individuals carry high levels of virus and could continue to transmit it to others.
Singapore baby born with Covid-19 antibodies
The Singaporean mother had been hospitalised with mild Covid-19 while in Europe.
Convalescent plasma of limited use for Covid-19, study shows
Researchers say it failed to reduce mortality or stop progression to severe Covid-19 in moderately ill patients.