What is the pathogen of sleeping sickness?

Answer 1

Sleeping sickness is caused by a pathogenic protozoa of genus Trypanosoma . The protozoa has flagella and an undulating membrane.

The pathogen is carried by Tsetse fly from infected to healthy individuals. African game animals are reservoir of the protozoa, hence the disease is often referred to as African Sleeping Sickness.

The organisms are injected in the blood by tstse fly, but they eventually appear in cerebrospinal fluid. Thus there appears several neurological symptoms including disruption of normal sleep cycle.

In the below photograph flagellated infective organisms are seen in blood.

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Answer 2

Eli Ayoub

The pathogen responsible for sleeping sickness, also known as African trypanosomiasis, is the protozoan parasite called Trypanosoma brucei.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.