The work of professionals like epidemiologists, virologists and immunologists has been important.

Covid-19 is a very infectious virus. Infection with it can lead to blood clots as well as what have been called cytokine storms amongst others. The extent to which people infected with it can recover completely remains to be seen.

Development of effective vaccines for Covid-19 is still at the early (Phase 1) stage of clinical trials. Many research groups are working on this. It will probably be at least a year before vaccines are available.

In the meantime, the best thing people can do to minimise risk of infection with Covid-19 is to follow the usual rules; social isolation, social distancing, wash your hands carefully with soap and water every time you return to your house and so on.