Summary[edit] Description: English: Trypanosoma cruzi life cycle life cycle CDC. This illustration depicts the life cycle of Trypanosoma cruzi, the causal agent of American Trypanosomiasis. Date: 2 September 2012. Source: http://www.publicdomainfiles.com/show_file.php?id=13544370022452. Author: CDC/Alexander J. da Silva, PhD/Melanie Moser.
Whole-cell reconstruction of an attached Giardia intestinalis trophozoite using 3View®. Each slice was obtained using a microtome inside a scanning electron microscope. After each section was removed, a backscatter-signal scanning electron micrograph was recorded [18] . IMOD [56] was used to model important features of the cytoskeleton and attachment sites. Each slice is 70 nm. The majority of organelles are visible with this method: Plasma membrane (grey), median body (orange), nuclei (brown), ventral disc (green), anterior flagella (purple), caudal flagella (cyan), posterior-lateral flagella (blue), and ventral flagella (magenta). Near the ventral portion of the cell, important components of attachment are seen (bare area, lateral crest, lateral shield). Scale bar, 2 µm.
Summary[edit] Description: English: Leishmania donovani. Histopathology of leishmaniasis of subcutaneous tissue due to Leishmania donovani. Parasite. Date: 4 November 2012. Source: http://www.publicdomainfiles.com/show_file.php?id=13520081415889. Author: CDC/ Dr. Martin D. Hicklin, Courtesy: Public Health Image Library.
Summary[edit] Description: English: 'Trichomonas vaginals in a Gram-stained microscope slide. There is one top left and another in the middle on the right. Date: 28 April 2021, 16:22:37. Source: Own work. Author: Dr Graham Beards.
Summary[edit] Trypanosomes. Title: Trypanosomes. Description: Lantern slides. A38, trypanosomes Archives & Manuscripts Keywords: naval & military; David Bruce. Credit line: : This file comes from Wellcome Images, a website operated by Wellcome Trust, a global charitable foundation based in the United Kingdom. Refer to Wellcome blog post (archive).This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.. References: Library reference: RAMC 1242/A38 Photo number: L0022657. Source/Photographer: https://wellcomeimages.org/indexplus/obf_images/2f/30/b7de3dd78ac6ea4fccc9e2028380.jpg Gallery: https://wellcomeimages.org/indexplus/image/L0022657.html. Licensing[edit] : This file is licensed under the Creative CommonsAttribution 4.0 International license. :. You are free: to share – to copy, distribute and transmit the work to remix – to adapt the work Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. https://creativecommons.org/licenses/by/4.0 CC BY 4.0 Creative Commons Attribution 4.0 truetrue.
Centers for Disease Control/Division of Parasitic Diseases and Malaria
EOL staff
Life cycle of Leishmania protozoans, the cause of leishmaniasis in humansProtozoans in the family Leishmania are well known as the cause of leishmaniasis in humans. Leishmaniasis is transmitted by the bite of infected female phlebotomine sandflies (Psychodidae:Phlebotominae). The sandflies inject the infective stage (i.e., promastigotes) from their proboscis during blood meals (1). Promastigotes that reach the puncture wound are phagocytized by macrophages (2) and other types of mononuclear phagocytic cells. Progmastigotes transform in these cells into the tissue stage of the parasite (i.e., amastigotes) (3), which multiply by simple division and proceed to infect other mononuclear phagocytic cells (4). 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 (5,6). In sandflies, amastigotes transform into promastigotes, develop in the gut (7) (in the hindgut for leishmanial organisms in the Viannia subgenus; in the midgut for organisms in the Leishmania subgenus), and migrate to the proboscis (8).From Centers for Disease Control Parasites and Health website.
Summary[edit] Description: English: Drawing by C. E. Simon of a Giardia trophozoite obtained from individuals from Maryland, South Carolina, and a U.S. soldier in France. Preparations were fixed in Schandinn's solution, and stained with Heidenhain's haematoxylin. Flagella were stained with eosin-methylene azure mixtures or Mann's eosin-methyl blue mixture. Date: 1 July 1921. Source: Charles E. Simon (July 1921). "Giardia Enterica: A Parasitic Intestinal Flagellate of Man." in the American Journal of Epidemiology, Volume 1, Issue 4, Pages 440-491. DOI: 10.1093/oxfordjournals.aje.a118047. Author: Charles E. Simon, Johns Hopkins University School of Hygiene and Public Health, Department of Medical Zoology.