TB – Tuberculosis

Introduction Tuberculosis (TB) is a chronic infectious disease, caused by Mycobacterium tuberculosis (MTB)¬†of which there are three types that infect humans: M. tuberculosis –¬†by far the most common type M. bovis¬†(bovine TB) M. africanum...

More

Tetanus

Introduction Tetanus is a bacterial infection caused by clostridium tetani, which causes involuntary muscle spasm, and if untreated, is fatal in about 10% of cases. The bacterium is widespread in the natural environment, particularly in soil,...

More

Tonsillitis

Introduction Tonsillitis is an acute inflammation of the tonsils, usually secondary to an infect. It is a common cause of sore throat, and a common reason for presentation to General Practice, and the Emergency...

More

Toxoplasmosis

Introduction Toxoplasmosis is a parasitic disease caused by the protozoa Toxoplasma gondii, whose main reservoir is in cats, although it can infect most mammals. In humans, it can cause an acute, vague flu-like illness,...

More

Trichomoniasis

Introduction Trichomoniasis is a parasitic protozoan infection, the result of infection with the flagellated anaerobic trichomonas vaginalis. This is the most common protozoan infection in the developed world It is a sexually transmitted infection...

More

Typhoid

Organism Salmonella typhi Incubation: 10-21 days Transmission Through food or water contaminated by faeces or urine of carrier Epidemiology Highest incidence ages 5-19 1% become chronic carriers Pathogenesis Causes a systemic septicaemia (also known...

More

Typhus

Organism Rickettsiae = obligate intracellular bacterial parasite Incubation: 2-23 days Transmission Carried by host anthropods Pathogenesis Widespread vasculitis and endothelial proliferation may affect any organ Thrombotic occlusion may lead to gangrene Clinical features Types...

More