How long for H1N1 contagious period?
Posted on November 11, 2009
Filed Under H1N1 Symptoms & Diagnosis | Leave a Comment
Occurred in the southern United States and Mexico were infected with influenza A H1N1 influenza virus (swine influenza) A (H1N1) has caused fatal cases of widespread concern around the world, the World Health Organization (WHO) officials are concerned that H1N1 influenza virus could trigger a global influenza pandemic.
WHO attracted extensive attention for two reasons: First, the influenza A H1N1 influenza virus A (H1N1) previously unknown, “human transmission,” the possibility of large; 2 is a human infected with the influenza A H1N1 influenza virus can be lethal. Widespread influenza viruses in nature, can cause including human, horse, pig, tiger, leopard, cats, dogs, poultry (chickens, ducks, geese, migratory birds) infection. Human influenza virus and avian influenza disease and influenza A H1N1 influenza virus gene structures are completely different, the general conditions, people are not readily infected with avian influenza viruses and influenza A H1N1 influenza viruses. However, the pig airway epithelial cells in both a human influenza virus receptor, another avian influenza virus receptor, therefore, both infected with influenza A H1N1 swine influenza viruses can also be infected with human influenza viruses and avian influenza virus. If different influenza virus are also infected with a receptor (pig), through genetic recombination could generate new influenza viruses that influenza virus may be pathogenic to human capabilities, and may be circulated widely among people, which is WHO cause for concern.
However, the current situation has not, as many media publicity was so dreadful. As the U.S. local time, April 26, 2009, the United States has confirmed human infection with influenza A H1N1 influenza virus in 20 cases, located in New York (8 cases), California (7 cases), Texas (2 cases), Kansas (2 cases) and Ohio (1 case), but patients with the above-mentioned 20 cases were mild, and only one case required hospitalization. Although the Mexican Health Minister Jose Cordova told the media: As of April 25, 2009, Mexico City and the surrounding areas have emerged more than 1000 cases of “flu-like cases,” “estimates,” 81 cases of deaths and Influenza H1N1 influenza virus infection. However, after laboratory-confirmed cases of human infection with influenza H1N1 Influenza A (H1N1) cases in only 18 cases.
Therefore, the general public need to understand some knowledge of influenza viruses to avoid unnecessary panic.
1. People are infected with influenza A H1N1 influenza virus What are the symptoms?
People are infected with influenza A H1N1 influenza viruses and human influenza (seasonal flu) similar: including fever, cough, sore throat, headache, aching muscles, chills and fatigue. Some patients may have symptoms of vomiting and diarrhea. Reported in the past: Influenza A H1N1 influenza virus infection occurs with severe pneumonia, respiratory failure and death limited cases. Such as seasonal influenza (human influenza), the influenza A H1N1 influenza influenza patients may exacerbate underlying diseases (such as: cardiovascular disease, hypertension, cerebrovascular disease).
2. Influenza A H1N1 influenza contagious?
The experts believe that the U.S. CDC: Influenza A H1N1 influenza is contagious, but infectious in the end how strong it is not clear. Influenza A H1N1 influenza virus infection in patients is a major source of infection. Infectious period from 1 day prior to the onset to about 7 days after onset. Children infected with infectious period longer than adults. If the patient inhaled a healthy person sneezing, coughing droplets can be produced by infected; due to Influenza A H1N1 influenza virus can survive in the request loving sister for more than two hours, if exposed to influenza A H1N1 influenza virus have been contaminated desktop, chair and other items, without washing their hands in contact with their own eyes, nose, or mouth, may also be infected.
After cooking to eat pork and pork products will not be infected with influenza A H1N1 influenza viruses.
3. How can I protect themselves and their families?
Most importantly, wash your hands, wash hands with soap and water flow can be, but it must always wash. In addition, maintaining good physical condition is also important, including: maintaining adequate sleep (must not stay up late at night to go to bed before 10 power); appropriate physical activity; to reduce their own stress (not to work overtime, do not bear the burden of physical and psychological ); drink plenty of water (boil the tap water is best); three meals a day from time to time appropriate to ensure adequate nutrition.
Avoid contact with sick patients, if there is no outstanding needs, try to avoid to the hospital.
However, the following conditions must be to the hospital for treatment of infectious diseases subjects: 1) fever, body temperature greater than 37.5 degrees; 2) difficulty in breathing or shortness of breath; 3), chest tightness or chest pain; 4) a sudden fainting; 5) serious or persistent vomiting.
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