I can't authoritatively comment on COVID-19, despite a lot of years in the biological sciences, even some microbiology and a long term, vague (perhaps somewhat morbid) interest in emerging pathogens.
I certainly CAN suggest how you can tune up your home network to ensure it's going to be the best it can be to cope with you, your partner, flatmates, relatives and children (or whatever your domestic arrangement might be!) stuck at home and depending on the Internet as a life-line.
More and more countries seem to be enacting (entirely justifiable) stringent isolation measures for many weeks at a time, so I trust this information will be of some small help during this difficult time.
