The world has been puzzled and trying to find answers for the duration of viral shedding. This is from patients shedding the virus from cough droplets, or stool . Studies were done detecting the viral RNA using RT-PCR tests
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The War on Vaccination
The topic above sounds is if there is actually a war on vaccination between the Anti-Vaxxers whom we call The Anti-Vaccination Movement and the Pro-vaccination Movement
Analysing the current vaccines
Can over 65's get the vaccine?
When vaccines go through the trials the recommended participating age groups are 18-55 years for these trials.
Analysing Current Vaccines
Efficacy - efficacy can be analysed as the effectiveness of a given treatment and in this case of a given vaccine. So to determine how effective a vaccine is we need to set up some end points.