African trypanosomiasis

African trypanosomiasis or Human African trypanosomiasis or HAT or Sleeping Sickness is a neurological disease caused by a parasite transmitted by the tsetse fly, and is only found in Sub-Saharan Africa. African trypanosomiasis is caused by the trypanosoma brucei parasite, and control effects reduced cases to around 2,000 per year by 2019. A related parasite causes American trypanosomiasis, alternatively known as Chagas disease.

The most common form of African trypanosomia may not have major symptoms for many months or years, but symptoms emerge once the disease is advanced and cause central nervous system signs and symptoms.

Signs and symptoms

African trypanosomiasis is fatal without treatment.

=First stage

The trypanosomes (parasites) multiply in subcutaneous tissues, blood and lymph. Symptoms include:

• bouts of fever
• headaches
• swollen lymph nodes
• joint pain
• itching

=Second stage

The parasites cross the blood-brain barrier (BBB) and infect the central nervous system, this is known as the neurological or meningo-encephalic stage.

Symptoms become more obvious:

• changes in behavior
• confusion
• sensory disturbances
• poor coordination
• disturbed sleep cycle
• Fatal if left untreated

Treatment

There are two forms of African trypanosomiasis, and treatment depends on which form is presented. Drugs used for African trypanosomiasis are:

• Pentamidine, an antifungal medication also used for pneumocystis jirovecii pneumonia; this drug is available in the United States. Brand names include Nebupent and Pentam
• Fexinidazole
• Eflornithine
• Melarsoprol
• Nifurtimox, which may be used together with eflornithine and is sold under the brand name Lampit.
• Suramin

Suramin

Suramin is not available commercially, but has been identified as a potential medication to treat ME/CFS by research at the Open Medicine Foundation.

ME/CFS

African trypanosomiasis is not known to occur with or be linked to the development of ME/CFS.

See also

• Suramin
• Central nervous system

Learn more

• African trypanosomiasis - CDC
• Deep Dive Into The Science On ME - Open Medicine Foundation
• Trypanosomiasis - drugs.com
• Trypanosomiasis, human African (sleeping sickness) - World Health Organization

"being, living, occurring, or administered under the skin"

subcutaneous "being, living, occurring, or administered under the skin"

central nervous system (CNS) - One of the two parts of the human nervous system, the other part being the peripheral nervous system. The central nervous system consists of the brain and spinal cord, while the peripheral nervous system consists of nerves that travel from the central nervous system into the various organs and tissues of the body.

See myalgic encephalomyelitis.

See chronic fatigue syndrome.

Centers for Disease Control and Prevention (CDC) - The Centers for Disease Control and Prevention is a U.S. government agency dedicated to epidemiology and public health. It operates under the auspices of the Department of Health and Human Services.

See Centers for Disease Control and Prevention.