What are the different types of influenza viruses?
There are three types of influenza viruses: A, B and C. Virus A and B cause seasonal flu while C is typically associated with mild illness in children and young adults.

Influenza B and C virus have limited genetic diversity as both are restricted to a single specie each. Influenza type A virus has several sub-species. These species are classified on the basis of different combinations of hemaglutinin (HA) and neuraminidase (NA) — the proteins on its surface. For instance the H1N1 is an A type influenza virus that has an HA1 and an NA1 protein. Except H17N10, all known subtypes of influenza A virus can infect birds. The H17N10 virus is found in bats.

Bangladesh was equally concerned and apprehensive over diversion of Brahmaputra's water in China

Arunachal Pradesh and Bangladesh have discussed several measures for better management of the Brahmaputra river for mutual benefit, official sources said on Saturday. Arunachal Pradesh Water Resources Development Minister Newlai Tingkhatra during a meeting, here, on Friday with the visiting Bangladesh High Commissioner to India Tariq A Khan discussed ways to tackle the problem of siltation through river dredging and building embankments so that proper water depth was developed for inland water transportation.

In January, NASA revealed satellite images showing dramatic visuals of air pollution over China.

Shenzhen, a Special Economic Zone designed to promote market policies in China, will start emissions trading on June 17, the first announced start date among the country's regional carbon exchanges

Chinese authorities slaughtered over 20,000 birds at a poultry market in Shanghai on Friday as the death toll from a new strain of bird flu mounted to six, spreading concern overseas and sparking a

BEIJING, 6 APRIL: Nine miners were today trapped underground after flooding occurred in a coal mine in southwest China's Guizhou Province.

Allaying apprehensions over construction of three dams by China on the Brahmaputra (Yarlung Tsangpo in China), Union Water Resources Minister Harish Rawat on Friday said the “run-of-the-river’’ pro

The Government today allayed apprehensions about the three dams being built by China on the Brahmaputra, saying the projects will not affect India as most of the water in the river comes from Aruna

Scientists taking a first look at the genetics of the bird flu strain that has struck China said on Wednesday the virus could be harder to track than its better-known cousin H5N1 because it might b