Mircobiology Ch. 13

vector

carrier organism that carries the disease causing orgainsm from one host to another host of a different species

vector

usually an arthropod

host

mammal, bird, reptile, and plant

vectorborne disease

is a disease causing agent that is spread via third organism organism from one organism to another

direct effects

bites, wounds, bumps, venomous spiders

myiasis

injection of fly larvae into the skin

indirect effects

disease transmission

mechanical transmission

only acts as a carrier

biological transmission

vector is also a host

pubic lice

Phthirus pubis

pyrethrin and lindane shampoo

lice treatment (pubic and head)

head lice

Pediculosis capitus

body lice

Pediculosis corporis

body lice treatment

good hygiene, washing and changing clothes

scabies

Sarcoptes scabiei

norwegain scabies

severe and highly contagious form of scabies

5% permethrin wash all over from below neck

scabies treatment

bed bugs

Cimex lectularius

heat, laundering clothing and bedding, eliminate hiding places, insecticide application to furniture

bed bug control

transovarial

transmission from the mother; through the ovary to the egg; offspring infected from birth

mosquitos

#1 vector of infectious disease

insecticides to water surface, predators added to streams

mosquito control - breeding

insecticides applied aerial, predators

mosquitos control - adult

sand fly

major vector of Leshmania

sand fly

Phlebotomus

kissing bug

Triatome

reduviid bug

Triatome

Triatome

parasite discharged in feces which host scratches into the wound caused by the bug

environmental modification, insecticides

Triatome control

myiasis

invasion of organs and tissues of humans or other vertebrate animals with dipterous larvae

bot

maggot

warble

lesion with the maggot

human bot fly

Dermatobia hominis

torsalo

twist; pain caused when the larva rotates on its axis

maggot therapy

Lucilia sericata

maggot therapy

greenbottle flies