Coronavirus vaccine

Good news : Pharmaceutical companies Pfizer and BioNTech announced today that the Covid-19 vaccine project they are developing is "90% effective".
https://www.nytimes.com/interactive/2020/science/coronavirus-vaccine-tracker.html

Vaccines typically require years of research and testing before reaching the clinic, but scientists are racing to produce a safe and effective coronavirus vaccine by next year

This discovery, which could be followed by other ones, whistles probably the beginning of the end of the sanitary crisis.

Let's hope that few persons will die before the vaccine is available for everyone.