Free Download: Swine Flu OutBreak

The facts on swine flu:


WHAT IS IT?

Swine influenza is a common and sometimes fatal respiratory disease among pigs, first identified in 1930, that is caused by a Type A influenza virus. Normally the disease is specific only to pigs. But sometimes pigs can harbour more than one flu virus at one time, which enables the pathogens to mix genes. As a result, a new viral strain emerges that can cross the species barrier to humans, starting with people in contact with infected pigs. The latest threat is a strain of the H1N1 type of flu virus.


WHY THE ALARM?

The World Health Organisation (WHO) says the virus can be contagious among humans in close contact and the outbreak has "pandemic potential," meaning there is risk of a spread across regions or continents. In the past century, novel flu viruses have killed tens of millions of people and cost billions of dollars in economic costs. Worries about a new pandemic have focused in recent years on the H5N1 strain of bird flu, which has killed around 250 people since 2003, mainly in Southeast Asia. But H5N1 is hard to transmit among humans, and its threat has been contained by culling infected poultry.


WHAT ABOUT THE UNKNOWNS?

Experts insist there is no certainty that a pandemic will happen or if so that it will be a mass killer. There are many unknowns about the new strain, especially how easily it spreads between people, how virulent it is or could become. Figuring this out will be the work of gene scientists and epidemiologists.


WHICH COUNTRIES ARE MOST AFFECTED?

Mexico is the epicentre of the outbreak, with 103 confirmed and suspected deaths as of Monday and about 400 people hospitalised. In 10 other countries, there have been 57 confirmed or suspected cases, none of them fatal, among people returning from Mexico. The United States has had 20 confirmed cases, Canada six confirmed cases and Spain one case. Several countries from Colombia to New Zealand are investigating suspected cases.


HOW DOES THE VIRUS SPREAD?

Swine flu is thought to spread like typical flu, i.e. in viral particles expelled in coughs and sneezes that are then breathed in by someone nearby, or deposited on surfaces that are then touched by the hand and transmitted to the mouth, nose or eyes. People with the virus may be able to infect others beginning a day before symptoms develop, and up to seven days or more after becoming sick. Young children may be contagious for somewhat longer.


WHAT ARE THE SYMPTOMS?

Sudden fever above 38 degrees Celsius (100.4 degrees Fahrenheit), cough, headache, aching joints, nasal congestion, general fatigue and lack of appetite. Some people who have contracted the virus report runny nose, sore throat, nausea, vomiting and diarrhea. In past cases, swine flu has caused pneumonia and respiratory failure and worsened chronic medical conditions.

More>>

Free Information of Swine Flue, please download for free and forward to all your friends.
Swine Part 1
Swine Part 2