On his VDU's blog, Dr. Ian Mackay writes: The decline of H7N9 Wave 2: some thoughts on why it may be different from Wave 1.... Excerpt:
Influenza virus and influenza the disease certainly give scientists a run for their limited money when it comes to predicting what either will do from year-to-year, country-to-country or outbreak-to-outbreak.
And just when you think you know enough, things change.
This morning my Twitter stream was fed by a sparkling rivulet of informed comment by @influenza_bio ("A biologist"; follow him if you don't already) on the subject of why H7N9 cases are falling. @influenza_bio groups together a few great points:
Click through to see how much two informed people can discuss in 140 characters or fewer per tweet.