med the "new H1N1", first identified in April 2009, and commonly called "Swine flu." It is thought to be a mutation of four known strains of the influenza A virus, subtype H1N1: one endemic in (normally infecting) humans, one endemic in birds, and two endemic in pigs (swine).Experts assume the virus "most likely" emerged from pigs in Asia, and was carried to North America by infected persons. There is also evidence that the new strain had been circulating among pigs on other continents for years before infecting humans. But transmission is human to human, with cooked pork products safe to eat as the virus cannot be transmitted by eating foods.
The outbreak began in Mexico, with evidence that Mexico was already in the midst of an epidemic for months before the outbreak was recognized. Soon after, their government closed down most of Mexico City's public and private offices and facilities to help contain the spread. In early June, as the virus spread globally, the World Health Organization (WHO) declared the outbreak to be a pandemic, but also noted that most illnesses were of "moderate severity."
The virus has since spread to the Southern Hemisphere which entered its winter flu season, and to many less developed countries with limited healthcare systems. Because the virus was spreading with "unprecedented speed", and many clinics were overwhelmed testing and treating patients, WHO stopped requiring countries to report all cases, but is still monitoring unusually large outbreaks.
The virus typically spreads from coughs and sneezes or by touching contaminated surfaces and then touching the nose or mouth. Symptoms, which can last up to a week, are similar to those of seasonal flu, and may include fever, sneezes, sore throat, coughs, headache, and muscle or joint pains.
Just like in Portugal, in England there is information everywhere - in tubes / tube stations, in schools and universities, in many public places - and there is also a swine flu hotline available. Its National Health Service (NHS) is also broadcasting the ad that follows:
So, be careful not to catch the swine flu - it is particularly dangerous for pregnant women and experts are now warning against giving Tamiflu to children. According to researchers, this anitiviral drug should not be given to children under 12 because its side effects outweigh any benefits once it might lead to dehydration and complications.
Now, are you worried about this swine flu? What are you doing to prevent the disease (if anything)?
