Related Clues:

• Infection passed on quickly, they say
• Swine —; gastric —
• Feel extremely unwell in the head with this?
• Bird or Asian
• Wintertime bug
• Shortened word for a viral cold
• An infection
• __ bug
• ___ season
• Cold-weather bug
• Annual winter outbreak
• Infection reduced and passed quickly, from what we hear
• Some superfluous complaint
• Blue or yuppie follower
• Common reason for absence