Sentences with phrase «microfilaria reach»
Heartworm tests can not show a positive result until the tiny microfilaria reach 6 - 7 months of development.
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In the skin the larvae mate and form so - called new microfilaria, which then reach the dog's bloodstream.
However, starting prevention without testing can be harmful, because once the heartworms reach a certain point in development, the killing off of the microfilaria in combination with juvenile or adult heartworm in the system can be damaging to your dog's cardiovascular system.
The incubation period required to reach the stage where the microfilariae become transmittable to another host can be as little as two weeks or as long as six weeks, depending on the warmth of the climate, and the larval lifecycle ceases entirely if the ambient temperature drops below 14 °C (57 °F).
Tiny heartworm larvae are injected into the blood stream where they mature over the span of about 6 months until they reach adulthood in the veins of the pulmonary artery and lungs, where they reproduce and release microfilaria into the blood for the mosquito to ingest and pass on.
It is important to realize that such puppies will not develop adult heartworms or heartworm disease from these microfilariae; in order for a heartworm to reach adulthood, it must be passed through a mosquito.
These microfilaria «mature» in the mosquito until they reach the infective larval stage.