2. Why Does the Flu Have a ‘Season’?
While colds and coughs can appear any time of year, the flu typically peaks between December and February, notes the same source – which is why it’s a good idea to get the flu shot in the fall, to get ahead of the virus.
Why does the flu rear its ugly head in winter? While there’s no definitive answer, the source notes experts believe the virus thrives better in dry, wintry conditions, while “low humidity may also make it easier for the flu to attack the lungs.” The cross-travel boom during the holidays may open the door to different flu strains, it adds.