How is vaccine possible if immunity not conferred?

[LurkingElle]

The WHO is saying that virus antibody tests are dangerous because having antibodies does not necessarily mean that you’re immune, and that if you ARE immune it will probably be for only a limited time, probably one year max.
So how would a vaccine work?
And have scientists not tried and failed to develop vaccines for other coronaviruses?

I’m not sure you can read too much into that at this stage. I would suggest that there is much more research into antiviral drugs that treat malaria and HIV (and therefore far more options to try) precisely because there is no vaccine rather than the Coronavirus is more aligned with malaria and HIV than other viruses.

Remdesivir appears so far to be a very promising antiviral. That may well be a quicker answer to end all this than a vaccine. Believe it or not, it's made by a company called Gilead. I'm sure the conspiracy theorists that have watched too much Handmaid could really spin that!

Was Remdesivir the drug they developed to treat Ebola which was shelved because they found more effective treatments? I read that the small scale trails of that looked really positive.

@LurkingElle we do. It's just there are over 300 types of common cold virus. You don't catch the same cold twice, hence you get fewer colds as you get older and kids get loads!

@Grobagsforever
This study says that, in the case of RSV, whilst childhood infection induces partial immunity, individuals remain susceptible to RSV reinfection for life?

www.sciencedaily.com/releases/2016/04/160421145747.htm

www.nature.com/articles/nm.3985 2015 medical research article in Nature by the Wuhan lab and US scientists. A SARs-Covid chimeric virus is created, it attacks lung cells and it seems from the article they found no antibody, vaccine or treatment success in their research

So the world really warned that these viruses could transfer from animals to people.