Disease Vectors and Pathogens

Yes, it is a protozoan that causes sleeping sickness.

These protozoans are present as endoparasites in different groups of animals. They does not posses any locomotory organs. Their body has a tough covering called cuticle and a single nucleus.

The micro and mega gametocytes are formed in human beings and pass on to the mosquito. 

The microfilarae larva of this helminth causes filaria.

It is caused by Wuchereria bancrofti . It is commonly known as elephantiasis due to swelling of legs, scrotum, etc.

Kyasanur Forest Disease - It is a haemorrhagic fever caused by flavi virus and transmitted by tick.

It is a blood sucking parasite.

All of the above are protozoan related infections.

This is the correct option. The cure for malaria is obtained from the bark of cinchona plant.

Trypanosoma is a flagellated protista which causes African Sleeping sickness .

The sexual phase in the life cycle of plasmodium occurs in gut of mosquito.

Infective stage of Plasmodium vivax is sporozoite.

Yes, it is the correct answer, as both cholera and typhoid are caused by bacteria present in the sewage.

There are at least 93 serotypes in the world, though 23 prevalent serotypes that cause disease in different parts of the world, but no switching of the bacterium between serotypes. Infections with these organisms are common and often infect those with antibody or innate or combined deficiencies

Sleeping sickness in caused by trypanosoma.