How vaccines rev up the immune system nationalgeographic.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from nationalgeographic.com Daily Mail and Mail on Sunday newspapers.
The reason so few women win awards lies in the selection process. People nominating for prizes are predominantly men who fail to nominate their women colleagues
Where did the idea of inoculation against disease come from? Before vaccination, there was the technique of inoculation by variolation, in which scabs and pus were taken from someone suffering from smallpox would be inserted into cuts in the skin of a healthy person. This could induce a mild infection that offered protection against the more virulent form of the disease.
Almost four billion people have them inside their bodies, and yet their composition isn't fully known or disclosed. Scientists in different parts of the world continue to discover strange [.]