The U.S. Centers for Disease Control and Prevention (CDC) reported that of the type A viruses hitting the Northern Hemisphere, H3N2 made up 60%.

Two deaths in the U.S. were reported in May, one from type B virus, the other was H3N2.

The U.S. CDC, the European Centre for Disease Prevention and Control (ECDC), and the UN World Health Organization (WHO) say influenza cases are declining in the Northern Hemisphere, as the flu season ends, but are expecting flu cases to increase in the Southern Hemisphere, as the flu season is officially beginning there.

Already the WHO is reporting that 86.6% of recent type A influenza cases, in the South, are H3N2.

The WHO also reporting that the H3N2 cases in the Northern Hemisphere showed rapid changes in the virus, meaning a new vaccine is needed.

As the flu season begins in the Southern Hemisphere, New Zealand is reporting that people there are scrambling to get vaccinated.  So far more than 910,000 New Zealanders have been vaccinated.

Flu season might be officially ending in the Northern Hemisphere, but don’t tell that to Hong Kong health officials.  The Centre for Health Protection (CHP) says the number of flu cases there are still high, with H3N2 making up 88.1% of recent cases in the weeks from 21 April to 12 May. Health officials in Hong Kong say the reason is that the new strain of H3N2 renders the vaccine useless!

The CHP reports at least 92 flu related deaths between 13 January and 14 May.