Schistosomal cercaria

Description:

Description: English: This historic 1942 photomicrograph revealed some of the morphologic details displayed by a schistosomal cercaria, which is the larval stage of a parasite that causes “swimmer’s itch”, and was magnified approximately 150x. This was one of a series of instructional images used by the Minnesota Board of Health to train its state public health workers. The purpose of the images and the accompanying training was focused on protecting potable water supplies from contaminants including toxins, and pathogenic organisms, such as the parasite pictured here. This material was obtained from Professor William A. Riley, of the University of Minnesota. The sample itself was taken from Lake Owasso, Minnesota. Date: 1942. Source: : This media comes from the Centers for Disease Control and Prevention's Public Health Image Library (PHIL), with identification number #8556. Note: Not all PHIL images are public domain; be sure to check copyright status and credit authors and content providers. English | Slovenščina | +/−. Author: Photo Credit: Content Providers(s): CDC/ Minnesota Department of Health, R.N. Barr Library; Librarians Melissa Rethlefsen and Marie Jones, Prof. William A. Riley. Permission(Reusing this file): PD-USGov-HHS-CDC English: None - 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.