This question is only addressed to those who actually know. If you don't know, please don't post an opinion.
If the WHO is right that having the Covid-19 illness does not provide immunity against being reinfected then does that also mean that a vaccine is moot?
Vaccination is based on the premise that introducing the vaccine into the bloodstream causes the body's immune system to produce antibodies which will fight off an infecto=ion, but if the Covid disease itself does not produce immunization then how can a vaccine produce immunization?
If you are a scientist who knows the answer to this question, please provide an explanation.
Also, if some politician has asked a similar question or some news personality, I have not heard this. This question came on its own to my mind after reading that the WHO was saying that there is no evidence that being infected produces immunity.