1 Vitamin D Deficiency âLow Vitamin D has been associated with several types of cancer as well as certain autoimmune diseases such as systemic lupus. 2  HIV/AIDS âNearly half of the people who get HIV/AIDS are African American, suffering more deaths than any other race.
The most common vaccine-preventable diseases among travellers are influenza and hepatitis A. Other vaccines to consider for travel include rabies, hepatitis B, typhoid, cholera, yellow fever, Japanese encephalitis and measles. Many vaccines can be given by flexible accelerated schedules to ensure early protection.
How does a vaccination help the immune system? A vaccine contains weakened or dead pathogens that the vaccine is against. For example the polio vaccine would contain the dead/weakened polio virus. This means that the Whiteâ¦ blood cells will identify the virus and produce the antibodies to destroy the virus. On the antibodies is a protein that basically can remember the shape of the virus.