Mechanical and biological vectors A vector is an animal that carries a disease from host to host Mechanical vectors An animals that carries a pathogen from host to host without being infected itself is a mechanical vector ID: 1009350
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1. Mechanical and biological vector ,Reservoir , Host – vector relationship , vectoral capacity
2. Mechanical and biological vectorsA vector is an animal that carries a disease from host to host . Mechanical vectorsAn animals that carries a pathogen from host to host without being infected itself is a mechanical vector .Eg. A fly lands on feces and then on your food ,depositing pathogens from the feces that you then ingest . Cholera , typhoid fever .
3. Biological vectorAn animal that carries a pathogen that reproduces inside it before transmitting it to another host , typically via a bite , is a biological vector .Eg. Mosquitoes – Malaria , zika , yellow fever , dengue fever.Fleas – burberic plague
4. Reservoir hostAn animal host , acting as a source of transmission of any disease/infection .Most of the cases , Human acting as reservoir host .Parasite does not causes any symptoms to the host , but remains in the host and spread the disease .It harbors a pathogen but suffers no ill effects .They serves as a source of infection to other species that are susceptible ,with important implications for disease control.A single reservoir host may be reinfected several times .
5. In the reservoir host , the parasite neither undergoes development nor causes any disease .Eg. Monkey for plasmodium , African antelope for Trypanosoma gambienc .