mRNA vaccine manufacturers loathe to share know-how
In contrast, 54% of the total population in the U.S. is fully vaccinated. After approving booster shots for the immunocompromised people, on September 22, the U.S. FDA greenlighted booster shots…
Category: mRNA vaccine
Natural immunity is superior to protection conferred by vaccination but not a safe, preferable option
Now, a vaccine effectiveness study undertaken in Israel has shown that natural infection confers stronger immunity against the SARS-CoV-2 virus than even full vaccination. They found that people previously infected…
Is the race to reach herd immunity like chasing a mirage?
There have been instances in some countries where the virus spread has largely been under some kind of control at least for some duration. However, the emergence of highly contagious…
In a major shift, India fast-tracks restricted use approval for vaccines developed in other countries
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…
Will adenovirus antibodies reduce the efficacy of vector vaccines?
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.
Proving variant-specific efficacy will be a logistic nightmare, very expensive: Gagandeep Kang
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…
Pfizer vaccine can be stored at -15 to -25 degree C for two weeks
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…
Why people with prior SARS-CoV-2 infection still need to be vaccinated
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…
