A cercaria (plural cercariae) is the larval form of the trematode class of parasites. (wikipedia.org)
The cercaria swims in the water, searching for a suitable host where it can continue the next phase of its life cycle and become a trematode. (medicalnewstoday.com)
Penetrate the skin2
Larval schistosomes (cercariae) can penetrate the skin of persons who come in contact with contaminated freshwater, typically when wading, swimming, bathing, or washing. (cdc.gov)
4. The cercariae penetrate the skin of a freshwater or brackish-water fish and form cysts in the tissues of the fish. (msdmanuals.com)
Larval form2
The term Cercaria is also used as a genus name in descriptions of species when only the larval form is known. (wikipedia.org)
The infected snail then releases another larval form of the parasite called cercaria into the water. (medicalnewstoday.com)
Snail6
After infecting a snail, it develops into a mother sporocyst , which in turn undergoes asexual reproduction , yielding large numbers of daughter sporocysts, which asexually produce another short-lived, free-living stage, the cercaria . (wikipedia.org)
Once a snail releases the cercaria parasites into water, they survive for around 24 hours . (medicalnewstoday.com)
However, an infected snail will continue to produce cercaria larvae for the remainder of its life. (medicalnewstoday.com)
1 After the larvae leave the snail, the cercariae can directly penetrate mammal skin, then enter the bloodstream and migrate to the portal system of the liver, where they enter their sexual reproduction phase. (appliedradiology.com)
3. The cercariae are released from the snail into the water. (msdmanuals.com)
First morphological and molecular identification of the cercaria of Stomylotrema vicarium from the endemic apple snail Pomacea americanista . (bvsalud.org)
Rediae2
It escapes into the adjacent tissue and there gives rise either to one or more generations of rediae or at once to a new type of organism - the cercaria . (yourdictionary.com)
What determines the origin of the cercaria rather than a new generation of rediae is unknown. (yourdictionary.com)
Schistosomes1
Infection is acquired when people come into contact with fresh water infested with the larval forms (cercariae) of parasitic blood flukes, known as schistosomes. (who.int)
Metacercaria1
The motile cercaria finds and settles in a host where it will become either an adult, or a mesocercaria, or a metacercaria, according to species. (wikipedia.org)
Infect2
The cercariae cannot infect humans, but they cause an inflammatory immune reaction. (wikipedia.org)
5.The cercariae infect crabs or crayfish and form cysts (called metacercariae). (merckmanuals.com)
Cercarial1
Images: Left: Cercariae of Austrobilharzia variglandis (left), which can cause cercarial dermatitis. (cdc.gov)
We are investigating the effect of geographic distribution on parasite population diversity in cercariae, and the effect parasite population genetic factors in association with host morbidity indicators. (imperial.ac.uk)
Species1
By drinking the water which contains the cercaria of this species, they grow infested by this singular lodger. (dictionary.com)
Tail1
The cercaria is just visible to the naked eye and has an oval or discoidal body and usually a long tail of variable form. (yourdictionary.com)
Symptoms1
[3] People repeatedly exposed to cercariae develop heavier symptoms with faster onset. (wikipedia.org)
After multiplication, thousands of free-swimming, forked-tailed cercariae are released. (merckmanuals.com)
Blood1
The parasites that cause swimmer's itch are called cercariae , and they naturally live in the blood of animals such as ducks, geese, swans, and raccoons that live in or around lakes, ponds, and oceans. (buzzfeednews.com)
State1
It is always of a deep colour, and is doubtless introduced in the state of cercaria , when the animal is drinking. (dictionary.com)
Present1
By a process of infolding, the thicker end is partially invaginated, the middle portion or " hind-body " and the organism may now present a superficial likeness to a cercaria . (yourdictionary.com)
Host1
The cercariae emerge and invade the second intermediate host (ie, a crustacean such as crabs or crayfish), in which they become metacercariae. (medscape.com)