Respuesta :

Answer:

Vectors that can spread disease to human include Mosquito,Tick and rabbit.

Explanation:

Vectors are those organisms that itself does't spread disease but transmit diseases by carrying pathogen or acts as a host for carrying the pathogen in their body, which affects the health of an healthy person by creating disease.

Mosquito, Tick and rabbits are excellent vectors as they transmit diseases like malaria,Lyme disease and Plague.

Some other diseases that are spread through mosquito are Dengue,elephantiasis etc.

Some other diseases that are transmitted through Tick are rocky mountain spotted fever, babesiosis etc.

Some other diseases that are transmitted through rat are Salmonellosis,Leptospirosis etc.

Answer:

Answer is option E (A and B only).

Explanation:

Vectors are any living organisms or agents that carries and transmits pathogens that can cause infectious diseases between other living organisms. They are mostly bloodsucking insects like mosquitoes, fleas, ticks, sandflies, bugs, lice and some freshwater aquatic snails. Some parasitic plants and fungi acts as vectors for plant pathogens.

When the blood sucking insects feed from an infected host (human or animal), pathogen enters their blood stream and during their next feed it is transmitted into a new host. The examples of various vectors and some of the diseases they spread in humans and other animals are;

  • Anopheles mosquitoes - Malaria , Lymphatic filariasis.
  • Aedes  mosquitoes  - Dengue fever , Zika , Chikungunya , Yellow fever , Lymphatic filariasis .
  • Culex  mosquitoes - West Nile fever , Lymphatic filariasis , Japanese encephalitis .
  • Ticks  - Lyme disease , Tularaemia , Crimean-Congo haemorrhagic fever , Tick-borne encephalitis , borreliosis.
  • Fleas  - Rickettsiosis , Plague.
  • Sandflies  - Phelebotomus fever, Leishmaniasis.
  • Lice  - Typhus, Louse-borne relapsing fever.
  • Triatomine bugs  - Chagas disease.
  • Black flies  - Onchocerciasis.
  • Aquatic snails  - Schistosomiasis.

The risk  of transmission of zoonotic disease from rabbits to humans is considered very low, but certain diseases such as encephalitozoonosis, dermatophytosis, rabies, etc carried by rabbits can be potentially transmitted to humans. Some zoonotic diseases such as tularemia (rabbit fever), lyme disease, etc are very rarely transmitted by fleas and ticks (vectors) into humans and  animals, and such infection can be subclinical or may cause flu-like signs or pneumonia.