We have already started to see atlleast 2-3 cases of severe Bronchiolitis every day. It is a very common respiratory illness in babies less than 1 year of age, in winter. It can be caused by several viruses, but this year, it seems to be the well associated, Respiratory Syncitial Virus coming back with a vengence. There is no treatment except supportive management with oxygen/breathing support, if needed and keeping them well hydrated with fluids.
https://www.nhs.uk/conditions/bronchiolitis/