Swine flu originated from infected pigs. Until intensifying into a swine flu And spread in other pigs that are in the same pen due to exposure to secretions, mucus, saliva, sneezing and airborne viruses around the pig farm. When the caretaker pigs come into contact with the pigs, it can become infected with the virus from the pig. And can be spread from person to person through exposure to secretions, nasal secretions, saliva, sneezing / coughing until it is spread to other people. Click now >> slotxo