Credit: SINCLAIR STAMMERS/LONDON SCHOOL OF HYGIENE & TROPICAL MEDICINE/SCIENCE PHOTO LIBRARY

Caption: Leishmania mexicana parasites, light microscopy. L. mexicana is a protozoan that causes the tropical disease leishmaniasis, which is transmitted by the bites of infected sandflies. These are the motile promastigote forms of the parasite, which are injected into the blood by the sandfly's bite. Once inside the bloodstream they invade or are engulfed by phagocytic macrophage white blood cells, but are not destroyed, and instead hide from the immune system inside the cells. Thus hidden, the transform into the amastigote stage and reproduce, bursting from the cell to infect others. The amastigotes are then picked up the next time a sandfly bites and drinks blood, turn into the promastigote form, and the cycle continues. Leishmaniasis caused by L. mexicana is relatively mild, either causing an ulcer at the bite site or more widespread skin ulcers if the parasite spreads through the skin. The disease is typically self-limiting and heals over time, but persistent cases can be treated with pentavalent antimony drugs. Filmed with phase contrast illumination.

Release details: Model release not required. Property release not required.

Keywords: aleppo, american, americas, baghdad, bay, blood, boil, causative, cause, condition, culture, cultured, cutaneous form, delhi, dic, differential interference contrast, disease, disorder, flagellate, flagellated, flies, fly, grey, healthcare, host, infective, insect, intracellular, kandahar, kinetoplastid, l mexicana, lahore, leishmania, leishmania mexicana, leishmaniasis, life cycle, light microscopy, magnified, medical, medicine, microscope, neotropical, neotropics, new world, obligate, optical, oriental, parasite, parasites, pathogen, pathogenic, pian bois, promastigote stage, promastigotes, protozoa, protozoan, sandflies, sandfly, skin, sore, specimen, tropical, ulcer, uta, vector

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.

Leishmania mexicana parasites

K003/9027 Rights Managed

Downloadable master

Duration: 00:00:23.12

Frame size: 1920x1080

Frame rate: 25

Audio: No

Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 1.1G

Original

Capture format: Samurai

Codec: Apple ProRes 422 (HQ)

Please contact Science Photo Library if you require the original, or other formats.

 

Save watermarked comp

Request un-watermarked file

Price clip Pricing

Please login to use the price calculator