Logic fail.If the vaccine was protecting for 60 years SA wouldn't have any TB left
I've never known anyone with it.Logic fail.
The problem with TB in South Africa has little to do with declining efficacy of the BCG vaccine. It has a lot to do with socio-economic deprivation, chronic alcoholism, and HIV, leading to depressed immune systems.
I am fortunate that I do not know anyone in my socio-economic group ever infected with TB. I do know two in a lower socio-economic group who did have it: one died, one recovered. Both were car guards. Draw your own conclusions...
Yes, what exactly make you think that I missed that point? Or you also just like to post for the sake of posting.And again, it is NOT about total prevention, that requires a vaccine. It is about what role BCG could possibly be playing in reducing the severity of Covid 19, or improving the body's chance of developing anti-bodies sooner and even could mean why more people in SA are asymptotic.
True, but South Africa doesn't have to do any trials, because 80-90% of the population was vaccinated at birth...
If you were born before 1973 you would not have received the vaccine, either way less people to vaccinate.If the trials demonstrate the vaccine is effective we'll be smiling.
Depends which country you were born. But also take into account kids are immunised for various diseases normally until school going age. It could have been administered at a later stage, if not at birth.If you were born before 1973 you would not have received the vaccine, either way less people to vaccinate.
I was born in 1961, and have a vaccine scar on my shoulder. Why do you think the vaccine was not used before 1973? I had a followup test in 1979 that confirmed that I had been vaccinated at a young age. See: https://en.wikipedia.org/wiki/Heaf_testIf you were born before 1973 you would not have received the vaccine, either way less people to vaccinate.
Well...that's not surprising in the least.Vaccine trials are not universally welcome:
News24 unreservedly apologises to the Bill and Melinda Gates Foundation for falsely reporting that they want to test a vaccine for coronavirus in Africa.www.news24.com
Why do you think the vaccine was not used before 1973?
In South Africa, universal BCG vaccination of infants at birth was implemented in 1973.
BCG has been used in South Africa since 1973.