Hello
232results for ""
The study, published in the journal Cell Reports, showed there was no evidence of Covid-19 - or the Pfizer or AstraZeneca vaccines - entering DNA.
The PCR test must be done within the last 72 hours and register the details with health authorities.
Vaccine protection remains very strong against severe disease and hospitalizations caused by any version of the coronavirus.
The increase in trial size is said to help assess whether a rare inflammation of the heart muscle, seen in young adults shortly after vaccination, is common in younger age groups.
Vaccine protection remains very strong against severe disease and hospitalizations caused by any version of the coronavirus, and those most at risk are still the unvaccinated, according to experts.
India has undertaken one of the world's largest vaccination drives and has so far distributed some 430 million doses - more than any country except China, but less than many countries relative to its population.
Researchers are trying to determine just what level of COVID-19 antibodies a vaccine must produce to provide protection against the illness.
Currently tests can date from 48 hours for UK travellers and 72 hours for the other countries listed.
The move to accept visitors vaccinated with AstraZeneca's vaccine made by India came after a global outcry over the fact that the European Union's COVID-19 certificate only recognises AstraZeneca vaccines manufactured in Europe.
Soumya Swaminathan said the WHO is reviewing Covaxin as its manufacturer Bharat Biotech is now uploading its entire data on the health body's portal.