A
vaccine for Covid-19 (credit to Reuter UK)
At
previous posts, we talked about possible vaccines for Covid-19
(please read: Updates of Vaccines to Combat Covid-19 – Virus 12 | Tanza Erlambang Update and When Will Vaccine for Covid-19 Available? - Virus 4 | Tanza Erlambang Update).
The
good news that we are in phase 3 clinical trials with 30,000
volunteer at 89 different site in the USA now.
We
might have questions:
-
is safe for human?
-
what is safe dosage of Covid-19 vaccines?
Yes,
vaccine, in this case, developed by cooperation between federal
agency and biotechnology company, National
Institutes of Health's National Institute of Allergy and Infectious
Diseases (NIH) and Moderna is safe.
It
is reported safe because it had been went through two clinical
phases, and will complete final phases with thousand volunteer soon.
There
are 3 dosages are tested so far:
-
25 micro gram (µg)
-
100 µg
-
250 µg
The
results shown that all 3 dosages have positive impacted where its
generated immune responses. No serious effects have been recorded.
The
phase 3 will involve dose of 100 µg, it is medium doses. Researchers
use this medium dose, because:
-
at first shot, there is little reaction.
-
after 1 month, there is moderate reaction at second shot.
In
case of 25 µg dosage, the reaction is mild. There is severe reaction
when using 250 µg dosage.
We
are waiting the best outcome from clinical trials of 300,000
volunteer as soon as possible, probably
by next 3 months!
