You are here. Water birds. Water birds are a large and varied group of birds. Most are exclusive to fresh water sources such as rivers, lakes, dams and wetlands, however many sea and shore birds can also be regularly found in fresh water, e.g. cormorants and many migratory waders.
Vaccine Information. BCG is a vaccine for TB named after the French scientists who developed it, Calmette and Guerin. GUÃ©RIN bcg is not widely used in The United, states but it is often given to infants and small children in other countries WHERE tb is. common
These are called âtrivalentâ flu vaccines. Now, some flu vaccines protect against 4 strains. These are called âquadrivalentâ flu vaccines. After the CDC forecasts which flu strains are likely to circulate, flu vaccine manufacturers decide whether to design a flu vaccine that includes 3 strains (2 A and one B) or 4 strains (2 A and 2 B). A quadrivalent vaccine that helps protect against 2 A strains and 2 B strains may reduce the risk of being unprotected against the flu. To learn more, visit the CDC website at. http://www.cdc.gov/flu/