Are you going this for school or for you in the house ?
Answer:
they do not want to damage their lungs
Explanation:
A women's first menstrual period is called <span>menarche.</span>
Medical Definition of Vaccination. Vaccination: Injection of a killed microbe in order to stimulate the immune system against the microbe, thereby preventing disease. ... To immunize against viral diseases, the virus used in the vaccine has been weakened or killed.
