Preliminary results from some studies have found that seasonal flu shots may increase the risk of catching Influenza A(H1N1), Canadian scientists said Wednesday.
About 2,000 people from four Canadian provinces were involved in the separate studies, which showed that people who had received the seasonal flu vaccine in the past were more likely to get sick with the A(H1N1) virus, China’s Xinhua news agency reported Wednesday, citing the scientists as saying.
Researchers know that, theoretically, when people are exposed to bacteria or a virus, it can stimulate the immune system to create antibodies that facilitate the entry of another strain of the virus.
Dengue fever is one example, scientists say. But experts stressed that these are very preliminary results and need to be validated.
The main reason is because A(H1N1) may be the dominant strain of influenza circulating when the fall flu season hits, meaning it could be a waste of time and resources to mount a seasonal flu vaccine campaign.
Sept 25, 2009 - The Chinese mainland confirmed 1,387 new cases of the swine flu in the 48 hours ending 3 pm yesterday, bringing the total number to 15,968, according to the Ministry of Health. Of the new cases, only six were "imported cases," while the rest were all infected on the Chinese mainland, the ministry said yesterday.
So far, no deaths from A-H1N1 virus have been reported on the Chinese mainland, but Taiwan has reported 17 deaths, of whom two were pregnant women.
INDIA Updates - Nine swine flu deaths in the country Friday, including five from Maharashtra, took the toll due to influenza A (H1N1) in India to 286, health authorities said. Other than Maharashtra, two deaths were reported from Surat (Gujarat), one from Kanyakumari (Tamil Nadu) and another from Mysore (Karnataka).
With the latest casualties, the toll in Maharashtra has jumped to 117, highest so far in the country. The Karnataka toll has risen to 86, Gujarat has 28 fatalities and Tamil Nadu has reported four deaths.
At least 305 fresh cases were reported Friday that took the total number of people infected with the virus in the country to 9,284. Of the fresh cases, Delhi tops the chart with 154 cases followed by Maharashtra (39) and Andhra Pradesh (32).
Sept 21, 2009 - Brazil has been the worst affected country the pandemic H1N1 flu as it surged ahead of all other countries and increased at an astounding pace to 1024 casualties. The ratio of swine flu casualties compared to cases is also significantly high as the casualties are merely from 16668 cases. However, the health ministry of Brazil has said that the number of serious cases of swine flu is decreasing gradually.
DENGUE DEATH CASES INCREASES BY 65% IN 2010
Dengue cases in Malaysia significantly worse in 2010 compared with previous years.
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Are u protected against Influenza A(H1N1)?
Simple, low-cost measures such as hand-washing, wearing masks and quarantining infected patients provide a good shield against the spread of flu and other respiratory viruses.