h1n1 copy (a.j)

8/6/2019 H1N1 Copy (A.J)

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Swine influenza (also called swine flu , hog flu , pig flu and sometimes, the swine ) is an infectionby any one of several types of swine influenza virus . Swine influenza virus (SIV) is any strain ofthe Orthomyxoviridae that is endemic in pigs .[2] As of 2009, the known SIV strains include influenzaC and the subtypes of Influenza A virus known as H1N1 , H1N2 , H3N1 , H3N2 , and H2N3 .

Swine influenza virus is common throughout pig populations worldwide. Transmission of the virusfrom pigs to humans is not common and does not always lead to human influenza , often resulting

only in the production of antibodies in the blood. If transmission does cause human influenza, it iscalled zoonotic swine flu. People with regular exposure to pigs are at increased risk of swine fluinfection. The meat of an infected animal poses no risk of infection when properly cooked.

During the mid-20th century, identification of influenza subtypes became possible, allowingaccurate diagnosis of transmission to humans. Since then, only 50 such transmissions have beenconfirmed. These strains of swine flu rarely pass from human to human. Symptoms of zoonoticswine flu in humans are similar to those of influenza and of influenza-like illness in general, namelychills , fever , sore throat , muscle pains , severe headache , coughing , weakness and generaldiscomfort .

8/6/2019 H1N1 Copy (A.J)


About the causative agentWhat is it?This is a new strain of influenza virus A/H1N1. There have been reports of influenza-likeillness (ILI) and severe pneumonia cases in Mexico and the United States of America.Cases began to appear on 17 March 2009 in Mexico. Two cases in children werereported in Southern California in the United States on 17 April, 2009. Neither child hadcontact with animals. Between 17 March and 25 April 2009, clusters of outbreaks have

appeared in multiple locations in Mexico and USA. These clusters were consistent withhuman-to-human spread.

What are the characteristics of the novel influenza A(H1N1) virus?The virus is being described as a new subtype of A(H1N1) not previously detected in swine orhumans. The 2009 novel A(H1N1) strain contains an unusual mix of gene segments. The geneticsequencing of samples in the Centers for Disease Control (CDC) Atlanta shows that the new fluvirus contains segments from four different viruses: some North American swine viruses, someNorth American avian, one human influenza, and two Eurasian swine viruses.

8/6/2019 H1N1 Copy (A.J)


Who is affected?Seasonal influenza primarily affects people in younger or older age groups, whereas novel A(H1N1) affects all age groups. Most of the cases in Mexico have been found in healthy youngadults between the ages of 4 and 45 years old.

How does it spread?This novel influenza A(H1N1) is thought to spread in the same way as seasonal flu, which ismainly by person-to-person transmission through coughing or sneezing of people infected with theflu virus. People may become infected by touching something with flu viruses on it and thentouching their mouth or nose.

8/6/2019 H1N1 Copy (A.J)


What are the clinical symptoms of swine flu in humans? Patients experience high fever, cough, and sore throat, symptoms similar to typical influenza, withsome patients experiencing diarrhea and vomiting. The cases can rapidly progress to severe andunusual pneumonia.

8/6/2019 H1N1 Copy (A.J)


What can I do to protect myself from getting sick?

There is no vaccine available right now to protect against swine flu. There are everydayactions that can help prevent the spread of germs that cause respiratory illnesses likeinfluenza. Take these everyday steps to protect your health: • Cover your nose and mouthwith a tissue when you cough or sneeze. Throw the tissue in the trash after you use it. •

8/6/2019 H1N1 Copy (A.J)


Wash your hands often with soap and water, especially after you cough or sneeze. •Avoid touching your eyes, nose or mouth. • Try to avoid close contact with sick people. •Stay home from work or school and limit contact with others to keep from infecting them.Public health action needed what control measures should be implemented?People must be vigilant. Countries should ensure proper surveillance of severe or

unusual pneumonia cases or of a sudden increase in ILI cases. In Mexico, thegovernment closed the schools, universities and day care centers and asked governmentemployees to work from home. They also closed many public services in order tominimize the spread of disease. People are being reminded of the importance of frequenthand washing. People should follow cough etiquette and crowding should be avoided.

Personal hygiene is important!What should I do to keep from getting the flu?First and most important: wash your hands. Get plenty of sleep, be physically active, manage yourstress, drink plenty of fluids, and eat nutritious food. Try not touch surfaces that may becontaminated with the flu virus. Avoid close contact with people who are sick.

8/6/2019 H1N1 Copy (A.J)


What is the best way to keep from spreading the virus throughcoughing or sneezing?

If you are sick, limit your contact with other people as much as possible. Do not go to work orschool if ill. Cover your mouth and nose with a tissue when coughing or sneezing. It may preventthose around you from getting sick. Cover your cough or sneeze if you do not have a tissue.Then, clean your hands, and do so every time you cough or sneeze.

Antiviral Treatment

Suspected Cases

Empiric antiviral treatment is recommended for any ill person suspected to have swine influenza A(H1N1) virus infection. Antiviral treatment with either zanamivir alone or with a combination ofoseltamivir and either amantadine or rimantadine should be initiated as soon as possible after theonset of symptoms. Recommended duration of treatment is five days. Recommendations for useof antivirals may change as data on antiviral susceptibilities become available.

Confirmed Cases For antiviral treatment of a confirmed case of swine influenza A (H1N1) virus infection, eitheroseltamivir or zanamivir may be administered. Recommended duration of treatment is five days.These same antivirals should be considered for treatment of cases that test positive forinfluenza A but test negative for seasonal influenza viruses H3 and H1 by PCR

8/6/2019 H1N1 Copy (A.J)


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8/6/2019 H1N1 Copy (A.J)


h1n1 copy (a.j)

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