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Thursday, October 21, 2021

Why Discriminate Against Unvaccinated?

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21 October 2021 Nowadays,   it is common for countries to restrict the movement of the unvaccinated.  Some do not allow unvaccinated to ente...
Friday, October 8, 2021

How Best to Verify if an Air-conditioning Fan Coil Requires a Chemical Washing

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Chemical washing of air conditioning units is always expensive.   It is a difficult decision to make for the novice especially when the air ...
Thursday, September 2, 2021

Why do We Need to Be Concern about Some Vaccine Effectiveness Studies (Part 2) ?

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In Part 1,  we found that those studies done using real World Data are actually not measuring the vaccine effectiveness but a combination...
Wednesday, September 1, 2021

Coronavirus Vaccination Status in Hong Kong

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17 May 2021 Notices The data and graph from SCMP are readable again from 22 November onwards.   The other Graphs have been updated Hong K...

The Updates From the Ministry of Health (MOH) of Singapore

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8 September 2021 12 September 2021 Update:    MOH has stopped publishing details about infection and death rate according to vaccination sta...
Friday, August 20, 2021

Is It True Those Vaccinated Having a Better Chance of Survival Against Covid Variants?

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There are lots of arguments about the Covid vaccine isn't good.  Besides not knowing if there are long-term effects of taking them,  m...
Monday, August 16, 2021

Why do We Need to Be Concern about Some Vaccine Effectiveness Studies (Part 1) ?

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Rewritten on 1 September 2021 Some Vaccine Effectiveness Studies can give misleading results especially those having shorter timeframes an...