Swine influenza (swine flu) is a respiratory disease of pigs caused by the influenza A virus, which causes frequent outbreaks of influenza among these animals. Swine influenza viruses make pigs seriously ill, but mortality rates are low. These viruses can spread among pigs year-round, but most infectious outbreaks occur in the late fall and winter months, as do outbreaks in people. The classical swine influenza virus (H1N1 influenza virus type A) first isolated from a pig in 1930. You should know about Swine flu pandemic because after infected you can understand that was swine flue.
Swine flu pandemic : How many swine flu viruses are there?
Like all influenza viruses, swine influenza viruses continuously change—pigs infected with avian and human influenza viruses, as well as swine influenza viruses. When influenza viruses from other species infect pigs, viruses can regroup (that is, change their genes). New infections can emerge from the mix of swine flu viruses with human or avian flu viruses. Over the years, different variations of swine influenza viruses have developed. Currently, there are four main subtypes of influenza virus type A isolated from pigs: H1N1, H1N2, H3N2, and H3N1. However, most of the influenza viruses recently isolated from pigs have been H1N1 viruses.
How often are swine influenza infections recorded in humans?
In the past, CDC received notifications of approximately one case of human swine influenza virus infection every one to two years in the United States; however, from December 2005 to February 2009, 12 cases of human swine influenza infections have been reported.
What are the symptoms of swine flu in humans?
Symptoms of swine flu in people are similar to those of common seasonal influenza in humans and include fever, lethargy, poor appetite, and cough. Some people with swine flu have also reported runny nose, sore throat, nausea, vomiting, and diarrhea.
Can people get swine flu from eating pork?
The swine influenza virus is transmitting through food. You cannot get swine flu from eating pork or pork products. There are no risks if you eat pork and its derivatives that have been handled and cooked correctly by cooking pork to an internal temperature of about 71 ° C (160 ° F), swine influenza viruses and other bacteria and viruses killed.
What information do we have about the person-to-person transmission of swine flu?
In September 1988, a healthy 32-year-old pregnant woman hospitalized for pneumonia and died eight days later. The H1N1 swine influenza virus detected. Four days before becoming ill, the patient had visited a big show at a county fair where there widespread flu-like illness among pigs.
In follow-up studies, 76% of the pig exhibitors tested found to have antibodies that confirmed swine influenza infection, although no severe disease detected in this group. Additional studies indicated that one to three health care personnel who had contact with the patient developed mild influenza-like illness and antibodies against swine influenza infection.
How human swine influenza infections diagnosed?
A sample of secretion from the respiratory system should generally is collecting within the first 4 to 5 days of illness onset (when an infected person is more likely to spread the virus). However, some people, especially children, can spread the virus for ten days or more. Identification of the swine influenza virus type A requires the sample to send to CDC for laboratory testing.
What are the signs of swine flu in pigs?
Signs of swine flu may include a sudden onset of fever, depression, cough (growl), runny nose and eyes, sneezing, shortness of breath, red or swollen eyes, and loss of interest in food.
Is there any vaccine for swine flu?
However, there is no vaccine to protect people against swine flu. Seasonal influenza vaccine may provide partial protection against H3N2 viruses, but not against H1N1 swine influenza viruses.
A swine flu pandemic is one of the dangerous diseases from all of the conditions. So we should know about this disease. In this article, I tried to give information on all of the matters of the swine flu. If you have any information, don’t forget to know me or email us.
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