Anug Acute necrotizing ulcerative gingivitis also known as trench mouth is a common, non-contagious infection of the gums with sudden onset. The main features are painful,...

Pneumonia is a disease of the lungs, caused by Streptococcus, Staphylococcus and a number of other bacteria. The so-called lobar pneumonia is caused by...

Smallpox is one of the most dreaded of all infectious diseases, and one of the most contagious. When smallpox is epidemic, not more than...

Tetanus germs live in a place where there is but little oxygen. For this reason, deep penetrating wounds are the most dangerous. When they...

Diphtheria is one of the most common infectious diseases than polio and it is accompanied with so much danger than polio. The mortality rate...