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| Keywords: Babesia LifeCycle(French version).png The life cycle of Babesia' the causal agents of en Babesiosis Babesia_LifeCycle French_version GIF Traduction en français des légendes de l ™image suivante Babesia_LifeCycle GIF The Babesia microti life cycle involves two hosts which includes a rodent primarily the white-footed mouse Peromyscus leucopus During a blood meal a Babesia-infected tick introduces sporozoites into the mouse host Sporozoites enter erythrocytes and undergo asexual reproduction budding In the blood some parasites differentiate into male and female gametes although these cannot be distinguished at the light microscope level The definitive host is a tick in this case the deer tick Ixodes dammini I scapularis Once ingested by an appropriate tick gametes unite and undergo a sporogonic cycle resulting in sporozoites Transovarial transmission also known as vertical or hereditary transmission has been documented for large Babesia spp but not for the small babesiae such as B microti Humans enter the cycle when bitten by infected ticks During a blood meal a Babesia-infected tick introduces sporozoites into the human host Sporozoites enter erythrocytes and undergo asexual replication budding Multiplication of the blood stage parasites is responsible for the clinical manifestations of the disease Humans are for all practical purposes dead-end hosts and there is probably little if any subsequent transmission that occurs from ticks feeding on infected persons However human to human transmission is well recognized to occur through blood transfusions Note Deer are the hosts upon which the adult ticks feed and are indirectly part of the Babesia cycle as they influence the tick population When deer populations increase the tick population also increases thus heightening the potential for transmission Obtained from the CDC http //phil cdc gov/phil/home asp Public Health Image Library Image credit CDC/Alexander J da Silva PhD/Melanie Moser PHIL 3378 2002 Originally from http //www dpd cdc gov/DPDx/HTML/ImageLibrary/Babesiosis/ Babesia_LifeCycle GIF here phil PD-USGOV-HHS-CDC PD-USGov-HHS-CDC Parasitic diseases Babesia life cycle __NOTOC__ PD-USGov Original upload log wikitable - - 2007-05-19 07 19 38 544 × 435 29071 bytes Toxicotravail <nowiki> The life cycle of Babesia' the causal agents of en Babesiosis Babesia_LifeCycle French_version GIF Traduction en français des légendes de l ™image suivante Babesia_LifeCycle GIF The Babesia mic</nowiki> CDC lifecycles | ||||
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