Clostridium difficile (C. difficile) is a bacterium that is related to the bacterium that cause tetanus and botulism. It represents one of the most common hospital (nosocomial) infections around the world.

Coccidioidomycosis is the infection which is caused by the dimorphic fungus name as Coccidioides immitis. Most people who catch by it do not get sick at all. They don't even know they have the disease.

Colorado Tick Fever is an illness caused by a virus. This virus is carried by small mammals, such as ground squirrels, porcupines, and chipmunks, and by ticks. This type of fever manly founds in the United States. This disease is caused by infection with the Colorado tick fever virus, a member of the Coltivirus genera.

Common cold is often known as acute viral nasopharyngitis. It is a mild viral infectious disease of the upper respiratory system (nose and throat). Over 200 viruses can cause a cold.The common cold is more common in cold weather than in summer but there are still plenty of colds around in summer particularly when we go on holiday.

Conjunctivitis is caused by Chlamydia trachomatis. This illness often affects newborns. It is transmitted to the eye at birth or by fingers and occasionally by the water in swimming pools, poorly chlorinated hot tubs, or by sharing makeup. It is Also called swimming pool conjunctivitis.

Creutzfeldt-Jakob disease (CJD) is a rare. Actually it is a degenerative, invariably fatal brain disorder. Typically, its symptoms occurs at about age 60. There is currently no single diagnostic test for CJD. While CJD can be transmitted to other people, the risk of this happening is extremely small.

Croup is a common respiratory problem in all over the world. It is characterized by a harsh and barking cough. Mostly children between the ages of 3 months and 5 years old are affected with viral croup. Croup is most likely to occur during the winter months and early spring, and symptoms are most severe in children younger than 3 years of age.

Cryptococosis is a fungus infection. It is cause due to the fungus name is Cryptococcus neoformans. This fungus is ordinarily found in soil. It is the cause of the most common life-threatening meningitis in AIDS.

Cryptosporidiosis is a diarrheal disease. It is caused by microscopic parasites of the genus Cryptosporidium. Once an animal or person is infected, the parasite lives in the intestine and passes in the stool.

Cutaneous larva migrans is a parasitic skin infection. It is caused by hookworm larvae . This larva is that usually come from infest cats, dogs and other animals. It is found in southeastern and Gulf States, and in tropical developing countries.