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.
No. These viruses mutate rapidly and you can not get one vaccine for all of the subtypes.
Because the virus will mutate. When you get the flu more than once each time it is a different virus.
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
What you are talking about is a vaccine that is given by injection so you will not get the flu. The flu mutate all the time so you will need to get vaccines for each new strain. The first vaccine was used in 1940 during WWII.
none
The 1918 Spanish flu pandemic was closely related to an avian virus.