The influenza virus was a strain to which people had no immunity.
returning soilders spread Spanish flu killing millions and leaving others unable to work.
The Spanish flu likely came from pig farms in US, then spread to Europe via WW 1. The reason it is called the Spanish flu, is due to Spanish media being the first to report on it while other countries media played it down or ignored it.
The term that describes the spread of influenza across Europe after the war is "Spanish flu."
Yes, all birds spread bird flu
Swine flu is not spread by mosquitoes. See the related questions below for more information about how swine flu is spread.
Flu is spread through contact of an infected. While Plague and malaria is spread via fleas and mosquito.
Yes
none
The 1918 Spanish flu pandemic was closely related to an avian virus.
Communicable diseases are ones that are easy to spread, like the flu. If you have the flu, you can spread it by coughing or even talking to a person.
The spanish flu virus is believed to have started in Asia like most of the flu viruses, and then made its way to the US where it may have mutated on the way to become the pandemic Spanish flu of 1918. During this time of WW1, as soldiers were coming back to the US from war zones across the world and others were being sent from the US into the war, the virus spread to hundreds of millions of people in the US and worldwide. It did not originate in Spain. It is called the Spanish flu only because that is how most people first heard about it, from Spanish newspapers that, unlike newspapers in many other countries, continued to publish and get distributed throughout the war.
no because if you do not get something then you can't spread it think of a common cold if you don't have it then you don't spread it it will probably be the same for the swine flu