Summary
Scientists noticed new changes in a type of flu virus called H3N2 that raised concerns about a worse-than-usual flu season in the UK. However, experts indicate the flu season is behaving normally, despite media reports suggesting a "super flu." The flu is currently spreading at a regular rate, with no evidence it is worse than in other years.
Key Facts
- The flu virus, particularly H3N2, mutated with seven new changes observed in June.
- This mutated virus, called subclade-K, became the dominant form of H3N2.
- The UK flu season began a month earlier than usual.
- The current flu vaccine could not be adjusted quickly enough to match the new virus changes.
- Experts say the virus is spreading at a speed similar to previous years.
- There is a slight increase in the virus's ability to bypass human immunity.
- Flu impact on health and hospitals is broadly typical compared to other years.
- There are suggestions that flu cases may have peaked, but uncertainty remains.
