File:Phlebotomus pappatasi bloodmeal continue2.jpg
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DescriptionPhlebotomus pappatasi bloodmeal continue2.jpg |
English: This photograph depicts a Phlebotomus papatasi sandfly, which had landed atop the skin surface of the photographer, who’d volunteered himself as host for this specimen’s blood meal. The sandflies are members of the Dipteran family, Psychodidae, and the subfamily Phlebotominae. This specimen was still in the process of ingesting its bloodmeal, which is visible through its distended transparent abdomen. Sandflies such as this P. papatasi, are responsible for the spread of the vector-borne parasitic disease leishmaniasis, which is caused by the obligate intracellular protozoa of the genus Leishmania.
Español: Esta fotografía muestra un mosquito de la arena, Phlebotomus papatasi, posado sobre la piel del fotógrafo, que se presta voluntario como anfitrión para la comida de este espécimen. Los mosquitos de la arena son miembros de la familia Psychodidae, subfamilia Phlebotominae del orden Diptera. Se muestra al insecto todavía en el proceso de ingerir su ración de sangre, la cual es visible a través del abdomen distendido y transparente. Los mosquitos de la arena como este P. papatasi son vectores responsables de la propagación de la leishmaniasis , enfermedad parasitaria causada por el protozoo intracelular del género Leishmania.
العربية: الفاصدة الباباتاسية وهي تتناول وجبة الدم |
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Author | Content provider: CDC/ Frank Collins | ||
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This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image. |
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Public domainPublic domainfalsefalse |
This image is a work of the Centers for Disease Control and Prevention, part of the United States Department of Health and Human Services, taken or made as part of an employee's official duties. As a work of the U.S. federal government, the image is in the public domain.
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current | 14:15, 29 July 2008 | 3,408 × 2,315 (1.78 MB) | Abanima (talk | contribs) | {{Information |Description={{en|1= This photograph depicts a Phlebotomus papatasi sandfly, which had landed atop the skin surface of the photographer, who’d volunteered himself as host for this specimen’s blood meal. The sandflies are members of the D |
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Image title | 2006
Frank Collins Leishmaniasis is transmitted by the bite of infected female phlebotomine sandflies, injecting the infective stage (i.e., promastigotes) from their proboscis during blood meals. Promastigotes that reach the puncture wound are phagocytized by macrophages ,and other types of mononuclear phagocytic cells, and inside these cells, transform into the tissue stage of the parasite (i.e., amastigotes), which multiply by simple division and proceed to infect other mononuclear phagocytic cells. Parasite, host, and other factors affect whether the infection becomes symptomatic and whether cutaneous or visceral leishmaniasis results. Sandflies become infected by ingesting infected cells during blood meals. In sandflies, amastigotes transform into promastigotes, develop in the gut, (in the hindgut for leishmanial organisms in the <i>Viannia</i> subgenus; in the midgut for organisms in the <i>Leishmania</i> subgenus), and migrate to the proboscis. See PHIL 3400 for a diagram of this cycle. |
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Author | Photographer: James Gathany |
Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop Elements 2.0 |
File change date and time | 14:58, 29 July 2008 |
Color space | Uncalibrated |