INTRO

Cards (35)

  • Tropical Medicine is a branch of medicine which deals with tropical diseases and other special medical problems of tropical regions
  • SYMBIOSIS - living together of unlike organisms
  • Commensalism - is a symbiotic relationship in which two species live together and one species benefits from the relationship without harming or benefiting the other.
  • Mutualism - is a symbiosis in which two organisms mutually benefit from each other
  • Parasitism - is a symbiotic relationship where one organism, the parasite lives in or on another for its survival and usually at the expense of the host
  • Amoebiasis is also called as amebic dysentery. It is an intestinal illness caused by a parasite, Entamoeba histolytica. This parasite lives in the intestines and produces eggs (cysts) which are passed from the bodyin the stool.
  • Parasites live According to its habitat, egg-laying capacity, sexes, relationship with the host
  • Ectoparasite (infestation)lives on the outside of the host
  • Endoparasite (infection)lives within the body of the host
  • Oviparous lays immature/ unembryonated eggs(Ex. Helminths, Enterobius vermicularis)
  • Ovoviviparous lays mature eggs (Ex. Stronglyloides stercoralis)
  • Larviparous lays larva (Ex. Trichinella spiralis)
  • Viviparous young developed inside the body of the parent
  • Monoecious both male and female reproductiveorgans are found in one parasite (Ex.Cestodes)
  • Dioecious separate sexes; males are usuallysmaller compared to females (Ex.Nematodes)
  • Parthenogenic female worms are capable of self-fertilization (Ex.Strongyloides stercoralis)
  • Obligate when they take up a permanent residence in and arecompletely dependent upon the host (Ascaris lumbricoides)
  • Facultative they are capable of leading both a free and a parasitic existence even if they are outside the body of the host (Strongyloides stercoralis)
  • Intermittent visit the host only during feeding time
  • Accidental establishes itself in a host in which it does not ordinarily live
  • Permanent remains on or in the body of the host from early life until maturity, sometimes for its entire life cycle
  • Pseudoparasite artifacts mistaken as parasites (pollen, hairs)
  • Temporary parasite lives on the host only for a short period of time
  • Spurious parasite is a free-living organism that passes through thedigestive tract without infecting the host
  • Definitive host harbors the sexual or adult stages/terminal/final stages of the parasite (humans)
  • Intermediate host harbors the asexual stages or larval stages of the parasite (snails)
  • Paratenic Host a host which act as a transporting agent for the parasite and in which the parasite does not undergo any development (prawns)
  • The transmission of parasites involved 3 factors: a) source of infection
  • The transmission of parasites involved 3 factors: b) mode of transmission
  • The transmission of parasites involved 3 factors: c) presence of susceptible host
  • Reservoir - a host in which the parasite is maintained and act as a source of infection for new cases (rodents)
  • Incidental Host - refers to a situation in which the infected individual is not necessary for the parasite survival or development (trichinosis)
  • Family Name - “- idae
  • Superfamily - “- oidea
  • Subfamily - “- inae