Cancer develops gradually as a result of many different factors related to lifestyle choices, environment and genetics. Anyone can develop cancer, but many cancers can be prevented.
Chickenpox is a contagious disease caused by the varicella-zoster virus. Shingles, also known as zoster or herpes zoster, is a painful skin rash caused by the same virus. There are vaccines for both.
Whooping cough, also called pertussis, is a highly contagious respiratory disease. It is known for uncontrollable, violent coughing which often makes it hard to breathe. The best protection is vaccination.