* The 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, the main transmission is not from pigs to people, but rather from person to person.

* Swine flu is very contagious.

* The disease is spread through saliva and mucus particles.

* People may spread them by:

- Sneezing

- Coughing

- Touching a germ-covered surface and then touching their eyes or nose.