The definition of a disease is any departure
from ... ... By this definition, a
broken leg, a vitamin deficiency, an
allergic reaction, and an infection are all
Some people and animals become _ to mosquito bites as a result of repeated exposure to their _
Hypersensitivity can occur in people that work in mosquito control or mosquito research through constant _ or _ contact
with mosquitoes, or even with just their
- wing scales
Hypersensitive reactions are
_ _ occur when microbial
organisms present on the skin of an
individual enter the wound created by a
A secondary infection often occurs as a
result of _ the mosquito bite
_ _ , a viral disease, has virtually disappeared from the USA because of the
availability of an extremely effective _ , which may provide lifelong
protection from just a single dose.
availability of the _ _ vaccine is limited on a worldwide basis and many unvaccinated people live in areas where it is common
This species is a common vector of Yellow fever
Yellow fever is an _ _ disease. There is no _ , and in humans,
is commonly _.
- extremely serious
This species is common in urban and suburban areas
Aedes aegypti larvae occur in
many kinds of water-filled _ _ such as shallow wells, water urns,
discarded containers, and tires.
Dengue, caused by multiple _ of the dengue virus, is transmitted mostly by the _ _ mosquito
_ is considered second in importance only to malaria among mosquito-borne diseases.
The increase in _ _ _ has caused an increase in the number of viral strains causing dengue and the increase in the number of cases of a particularly serious form of the disease called dengue _ _ .
- global human travel
- hemorrhagic fever
_ _ _ is most serious in children and is a
significant cause of mortality
Dengue hemorrhagic fever
The interactions between mosquito hosts and the _ they transmit are
Three basic types of transmission mechanisms are involved _ , _ , _-_
Propagative transmission : the pathogen _ within the mosquito but does not undergo any changes in _ form
Developmental transmission : the pathogen undergoes _ changes, but does not _
Propagative-developmental transmission : the pathogen _ and undergoes changes in _ forms
Transmission of _ is an example of propagative transmission.
Transmission of arbovirus = the
_ is taken up by a female mosquito from a viremic host during blood
feeding, _ many times, and eventually infects the _ _ of the host.
- salivary glands
Transmission of arbovirus = when the female mosquito takes another _ _ , she may infect a new host by injection of _.
_ _ are transmitted by mosquitoes by _ transmission.
- Malarial parasites
The life cycle of
the malaria parasite is very _
The only example of _ transmission by insects is that of _ worms.
In California, the _ _ is
transmitted via developmental transmission.
_ transmission occurs when a female mosquito transmits a pathogen to her eggs prior to oviposition.
____ is the ratio of infections
that do not produce clinical _
to those that do.
- Inapparent to apparent disease ratio
The inapparent to apparent disease ratio is estimated by _ studies, and is affected by things like the degree of _ in a human population.
Most _ that result in human diseases have a very _ ratio, usually from 1:100 to 1:1,000
for every person infected with a pathogen only 1 in 100 or 1 in 1,000 developed _ _
A feeling of unhealthiness that can be
expressed by a person.