New Delhi: As you all know that dangerous Swine flu use to spread its legs during Monsoon season which was caused by influenza virus. Here we will tell you what are the causes and symptoms of this disease.

What is Swine Flu ?

Swine flu is caused by a strain of influenza virus that usually only infects pigs. Unlike typhus, which can be transmitted by lice or ticks, transmission usually occurs from person to person, not animal to person.

Swine flu is an infection caused by a virus. It’s named for a virus that pigs can get. People do not normally get swine flu, but human infections can and do happen. In 2009 a strain of swine flu called H1N1 infected many people around the world.

The virus is contagious and can spread from human to human. Symptoms of swine flu in people are similar to the symptoms of regular human flu and include fever, cough, sore throat, body aches, headache, chills and fatigue.

How is swine flu caused ?

The disease is spread among pigs by direct and indirect contact, aerosols, and from pigs that are infected but do not have symptoms. In many parts of the world, pigs are vaccinated against swine flu.

Most commonly, swine flu is of the H1N1 influenza subtype. However, swine flu viruses can sometimes come from other subtypes, such as H1N2, H3N1, and H3N2. 

Contact with infected pigs – this is the most common way of catching swine flu. Any contact with infected pigs makes transmission more likely.

Contact with infected humans – this is a much less common way of catching swine flu, but is a risk, especially for those in close contact with an infected person. In cases where humans have infected other humans, close contact was necessary with the infected person, and it nearly always occurred in closed groups of people.

The symptoms of swine flu are very much like those of regular influenza as they include :

• chills
• fever
• coughing
• sore throat
• runny or stuffy nose
• body aches
• fatigue
• diarrhea
• nausea and vomiting