Environtmental and Global Health

Posts Tagged ‘virus’

The discovery of the first AIDS vaccine was discovered 25 years ago. This vaccine is not healed the virus but prevent infection, although their effectiveness was not 100%. In the second analysis of this vaccine, which was made on 24 September this year in Thailand, confirmed that it is still less effective than was said.

The results of this analysis were: RV144 vaccine prevented only 31.2% of cases. The test was 125 people, but only 86 were able to serve because of that some people were injecting less than the doses needed (6) or who were injected when the number is not touched. These people were not all injected doses also participated in the ITT (intent to treat population). In this test the efficacy of the vaccine dropped to 26%.

This news has been very problematic because the information is still lacking to explain experiment. Researchers have promised that by the end of this month they say. However, the explanations are not convincing at all. At Wall Street Journal there have been several complaints about the way to inform the population.

I picked this story because AIDS is a chronic disease that affects many people and there are currently only preventive that this vaccine is ineffective.

Show signs of resistance to Tamiflu
If the behavior of how seasonal influenza H1N1 virus was indicative of something, the possibility that most of the pandemic strains of H1N1 virus to become resistant to Tamiflu, the principal remedy to combat this disease stored, are quite likely, the scientists
Researchers at Ohio State University have followed the evolutionary history of H1N1 influenza virus that first infected seasonal humans during the 1918 pandemic. This is one of 3 seasonal influenza A virus that commonly affect humans. The others are the H1N2 and H3N2.
Within two strains of H1N1 circulating in humans: how seasonal and pandemic form of influenza known as swine flu that has sickened millions and killed thousands of people since it first appeared in North America last spring.
Over time the H1N1 strain of seasonal influenza that survives worldwide have suffered mutations that have become resistant to antiviral agents based on oseltamivir. Tamiflu is the brand name for oseltamivir phosphate.

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