How soon until you feel ill after catching someone else’s disease? From measles to colds, flu and Covid, our expert guide to when the symptoms will hit… and how long YOU are then infectious for

NIH selects Dr. Jeanne Marrazzo to succeed Fauci as top infectious disease expert

Monkeypox patients could be infectious for up to FOUR WEEKS after symptoms appear, experts say

Why omicron is more infectious than other coronavirus variants

Lateral flow tests may FAIL to spot Omicron when people are most infectious, study warns 

‘More infectious and vaccine resistant’ Botswana Covid variant is driving South African surge