Bacterial Diseases

Brucellosis: Causes, Treatment and Prevention.

Definition Brucellosis is an infectious disease caused by a type of bacteria called Brucella. The bacteria can spread from animals to humans. There are several different strains of Brucella bacteria. Some types are seen in cows. Others occur in dogs, pigs, sheep, goats, and camels. Recently, scientists have seen new …

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Plague: Definition, Manifestations and Treatment.

Definition Plague is an infectious disease caused by bacteria called Yersinia pestis. These bacteria are found mainly in rodents, particularly rats, and in the fleas that feed on them. Other animals and humans usually contract the bacteria from rodent or flea bites. SEM image of Yersinia pestis History Historically, plague …

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Salmonellosis: Causes, Symptoms, Treatment and Prevention

Definition Salmonella infection (salmonellosis) is a common bacterial disease that affects the intestinal tract. Salmonella bacteria typically live in animal and human intestines and are shed through feces. Humans become infected most frequently through contaminated water or food. Types Salmonella is divided into two groups: Typhoidal Salmonella, which is made …

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Pneumonia: Causes, symptoms and treatment

Definition Pneumonia is an infection in one or both lungs. It can be caused by bacteria, viruses, or fungi. Bacterial pneumonia is the most common type in adults. Pneumonia causes inflammation in the air sacs in your lungs, which are called alveoli. The alveoli fill with fluid or pus, making …

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