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China has now confirmed 38 cases this season, compared with 10 at this point last season.
The 128 cases in China and Hong Kong this season top last season's total of 118 infections.
The fast pace of newly reported illnesses during China's 5th wave of illness has already topped last season's total.
In some hard-hit areas, sampling of poultry environments in December showed increased virus levels compared with that time in past waves.
The 111 cases reported in the first half of January have already topped December's total.
The 61 new infections reported last week push the mainland's total to at least 419 cases.
Analyses of samples from China and Taiwan hint at resistance to antiviral drugs.
So far there's no sign that H7N9 epidemiology is changing for humans, but for poultry, the virus has become more deadly.
H5N8 has now been confirmed in 40 countries, and South Korean scientists shared genetic findings from a recent H5N6 isolate.
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