Vaccine / vacuna

Vaccine / vacuna
It is prepared of antigens that once inside the organism there provokes a response of assault, named antibody. This response generates immunological memory producing, in most cases, permanent immunity opposite to the disease
Valve

Are lesions of the heart valves. The most common Stenosis and insufficient. The sign common to all valve is the presence of a heart murmur (noise caused by the turbulence that causes blood to pass through a difficult passage)