SLEEP SICKNESS

• protozoa: Trypanosoma brucei
• Tsetse fly
• Mother to child infection:
• Laboratories: accidental infections,
• Blood transfusion
• Sexual contact

The first stage haemolymphatic phase and is characterized by fever, headaches, and joint pains, and itching. Winterbottom's sign, the tell-tale swollen lymph nodes along the back of the neck,

The second stage, called the neurological phase, periods leading to daytime slumber and night-time insomnia

• obligate parasites have two hosts - an insect vector and mammalian host
• (VSG) coat