What is the „real“ flu called medically?
Show answer
Influenza
It should not be confused with a common cold.
💡 Did you know? The name comes from Italian.
5 of 10 questions with answers
Into which three types are influenza viruses divided?
Show answer
A, B and C
Type A causes the most dangerous outbreaks.
💡 Did you know? Only type A causes major pandemics.
How does flu usually differ from a cold?
Show answer
It starts suddenly and severely
Typical are high fever and aching limbs.
💡 Did you know? A cold, by contrast, comes on slowly.
Why must the flu vaccine be adapted every year?
Show answer
Because the virus keeps changing
Experts call this antigenic drift.
💡 Did you know? That is why vaccination is recommended yearly.
What do the letters H and N stand for in names like H1N1?
Show answer
Haemagglutinin and neuraminidase
They are two proteins on the virus's surface.
💡 Did you know? Their combination defines the subtype.
🔒 The other 5 questions are part of PurFact Pro.
Open in PurFactHow PurFact works
- Every new tab, every visit: one question from your packs.
- What you know comes back at growing intervals; what you don't yet comes back sooner.
- Games, learning paths and duels with friends turn studying into a competition.
Health & Medicine: all topics →
Home · All topics · Legal notice · Privacy · Terms · Contact