Juvenile heartworms are called microfilaria and circulate in the blood of
an infected host animal (usually a dog).
Not exact matches
Rabies (and rabies virus, its causative agent) is usually transmitted through the bite of an
infected animal into muscle tissue of the new
host.
This March it found signs of white - nose
infected animals in two small caves — one
hosting fewer than 10 bats and the other with around 60.
Combing the genetic data from a transmission study in ferrets, a team led by Thomas Friedrich, a professor of pathobiological sciences at the University of Wisconsin - Madison School of Veterinary Medicine, found that during transmission, when one
animal is
infected by another through sneezing or coughing, the process of natural selection acts strongly on hemagglutinin, the structure the virus uses to attach to and
infect host cells.
These
animals are common
hosts for the influenza virus, which comes in a wide range of strengths and types — some of which can
infect humans.
Since the sexual reproduction stage of malaria only occurs in insects, Poinar said in the new study that they must be considered the primary
hosts of the disease, not the vertebrate
animals that they
infect with disease - causing protozoa.
«
Animal viruses typically have all genome segments packaged together into a single viral particle, so only one of those particles is needed to
infect a
host cell,» Ladner explained.
Salmonella Dublin is «
host adapted» in cattle, meaning
infected animals can become permanent or long - term carriers, putting herd mates, especially susceptible calves, at risk.
For a long time, the prevailing idea was that parasites and pathogens evolve to target a particular
host and as they get better at
infecting a specific
animal or plant, they become less effective at
infecting other organisms.
Virologist Earl Brown of the University of Ottawa points out that passaging a virus from one
animal to another increases the virulence of the germ for the newly
infected species and decreases its virulence for the original
host.
Few of them that
infect humans had been found in
animals, and most astrovirus types had been found in just a single
host species.
Scientists are also using gene chips to detect genes that the bacteria «turns on'to
infect its
animal host.
A mosquito bites an
infected animal and then is an intermediate
host, spreading the parasite when it bites other
animals.
While heartworms can
infect more than 30 species of
animals, such as ferrets, domestic cats, foxes, and other wild
animals in the dog family, canines are considered the definitive
host for these devastating worms.
Cats get
infected when they eat slugs or snails that act as the intermediate
host or they eat the birds or
animals that consume the
infected slugs or snails.
Once ingested by another
animal, the larvae hatch and
infect the new
host.
There are many types of lungworms identified, which in varying ways
infect animals and migrate to the lungs and lower respiratory tract of their chosen
host, causing a variety of respiratory problems such as bronchitis and pneumonia.
Although these different rabies variants prefer certain
hosts, they are capable of
infecting all warm - blooded
animals, including pets and people.
(Click Here) Intestinal parasites are organisms that
infect people or
animals, living in the intestines and robbing the
host of nutrients.
Even the most effective tapeworm medicines will not prevent re-infection if there are adult fleas or lice in a dog's environment, or if the dog has access to rabbits, rats, rodents or other
infected intermediate
host animals.
The definitive
host is the dog, but it can also
infect cats, wolves, coyotes, jackals, foxes, and other
animals, such as ferrets, bears, sea lions and even, under very rare circumstances, humans.
When the mosquito bites another dog, cat, or wild
animal, the
infected larvae are deposited onto the surface of the
animal's skin and enter the new
host through the mosquito's bite wound.
It is ingested when cats eat another
animals» feces or
infected intermediate
hosts such as rodents and rabbits.
The mites can and do
infect humans and other
animals, but they prefer dogs when seeking
hosts.
To acquire the disease, the
host cat must consume raw meat or live
animals that are
infected with toxoplasmosis.
The definitive
host is the dog but it can also
infect cats and other
animals.
According to the American Heartworm Society, dogs are considered the definitive
host for heartworms; however, heartworms may
infect more than 30 species of
animals, including cats and humans.
In addition, the eggs may be eaten by another
animal («intermediate
host») such as a small rodent (for example a mouse or rat), and a cat can be
infected by preying on (eating) the
infected intermediate
host.
Dogs are considered the most common
host for heartworms, however heartworms may also
infect more than thirty species of
animals (including coyotes, foxes, wolves, domestic cats, ferrets) and even humans, though transmission from
animal to human (zoonotic infection) is extremely rare.
Another possible mode of infection includes ingesting an
infected intermediate
host; this will typically be a prey
animal, such as a bird or mouse.
Several different species of tapeworms may
infect our
animals, each with different intermediate
hosts.
The tick will bite its
host and the saliva will
infect the
animal.
Gueirard, P. et al, Human Bordetella bronchiseptica Infection Related to Contact with
Infected Animals: Persistence of Bacteria in
Host Journal of Clinical Microbiology, 1995
When an
infected animal is bitten by a mosquito, it not only ingests the blood, but also the microfilaria contained in the
host's blood.
Mosquitoes serve as the vector or
host of the heartworm larvae, picking up the larvae with their blood meal when an
infected animal is bitten.