A Science and Technology Blog
The vaccines that would be eligible for the fast-track approval will include those that have been granted an EUA by the US Food and Drug Administration (FDA), European Medicines Agency…
While it is unclear if pre-existing antibodies to adenovirus vector will affect vaccine efficacy, it is possible that repeated vaccination using adenovirus-based vaccine either as a booster or as annual vaccination, if the need arises, will result in reduced efficacy due to vector immunity.
What are the main challenges in developing and testing booster vaccine doses to address the new variants? Each variant (and many more beyond the first three that have been widely…
On December 11, 2020 when the U.S. FDA approved the vaccine for emergency use, the storage temperature stipulated was -60 to -80 degree C. The labels for the vaccine too…
Since vaccine shortage is expected to last at least for a few months, it may seem appealing to delay or avoid vaccinating those who have been naturally infected. But does…
With the virus running amok in the country and vaccines in short-supply, the U.K. is attempting an untested strategy of delaying the second dose of both AstraZeneca and Pfizer vaccine even in the absence of data from large trials. The intent is to rapidly but partially protect more individuals who are at risk.
Unlike in other groups, national databases of people with comorbidities are not available. However, though not comprehensive, since 2010, State governments have been conducting population-based district level screening to detect…
Meanwhile, the Indian government has spelt out four high-risk groups — healthcare workers, frontline workers, those over 50 years of age and those aged below 50 years but with co-morbidities…
