To have an usual number of cases of encephalitis in one locality is a concern.
The manifestation of a flu virus is not always going to present the same in every
area of the planet. Certain areas are going to see whatever the presenting strain is
capable of doing. For example, early in the pandemic, one country, Ghana I believe,
had many cases of conjunctivitis when people became infected with swine flu. We
did not see much of that presentation here though I personally had conjunctivitis,
and a mild case of "something" which may or may not have been swine flu. I'll
never know as I was not tested.
Encephalitis sometimes occurs with seasonal flu as well, but it is a very rare
complication. The Chinese are understandably worried to have nine cases in this
large city in Guangdong Province. Who knows what is happening elsewhere in
China? Very possibly, not even the Chinese know...
Quote from www.szcpost.com
It's said that there are several children being treated in Shenzhen Children's Hospital, of which accumulated 9 have showed symptoms of pathological changes and 6 have been on the way of recovering. Except for the 11-year-old boy Yuan who has just died, another two boys with surname Yang and Tang who have been infected with vital encephalitis are still in deep coma.
According to the introduction of the hospital, the Children's Hospital received a 3-year-old boy surnamed Chen who has been infected with H1N1 flu days before. The boy's case was quite serious when coming to the hospital but he had no infection in brain.
According to the introduction, from the H1N1 flu epidemic in China, Shenzhen has the most H1N1 flu children with nerve system lesions. The frequent appearance of the pathological changes of never system has cause great attention of the health department, who have sampled and researched the pathogenesis of the viral encephalitis occurring on the serious children patients of H1N1 flu.
(hat tip pfi/monotreme)