Schistosoma mansoni parasite. In 2009 researchers from the UT Health Science Center San Antonio and other institutions crack the genetic code of Schistosoma mansoni, a flatworm that can live up to 10 years on average in humans. The parasite is endemic in many tropical areas of the world. Blood Fluke, Human Parasite, Cheat Sheets, Beautiful Microbiology, Schistosom Parasite, Schistosoma Mansoni, Microscope Science, Health, Parasite Infection
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Colorful killers. A new vaccine protects mice against parasites that cause leishmaniasis. A vaccine could save tens of thousands of lives every year. Scientists report that they have used snippets of DNA to spur mice to fight back against parasites responsible for the illness, an approach they hope to soon begin testing in people. Leishmaniasis is caused by microscopic parasites of genus Leishmania; 20 different species can sicken humans, hits poor residents of tropical countries hardest.
As referenced in the most recent episode of This Week in Parasitism, Dickson Despommier, Mailman School of Public Health, Columbia University, and Yuzo Takahashi, Department of Parasitology, Gifu University School of Medicine, have posted hundreds of scanning electron micrographs at www.trichinella.org. This image of T. spiralis was taken by Despommier himself. The images in this collection, taken by Despommier, are free to use as long as you give him the appropriate credit.
This transmission electron micrograph (TEM) revealed numerous hepatitis virions, of an unknown strain of the organism. In the United States, viral hepatitis is an important public health problem because it causes serious illness, it affects millions, and it has a close connection with HIV. There are five identified types of viral hepatitis and each one is caused by a different virus. In the United States, hepatitis A, hepatitis B and hepatitis C are the most common types.
SEM of Staphylococcus epidermidis cluster embedded in exopolysaccharide matrix. The Gram-positive bacteria S. epidermidis and S. aureus are the most common pathogens in hospital-acquired infections. The more recent combination of extraordinary virulence and multiple antibiotic resistance in community-acquired methicillin-resistant strains of S. aureus (CA-MRSA) poses an additional severe threat to public health.
2.7-million-year-old fungus found deep under seafloor - Science The story of life on Earth keeps getting stranger. Researchers report they've discovered dormant algae and a thriving community of carbon-chomping fungus deep beneath the ocean floor in 2.7-million-year-old mud.
As the bacteria grow within a biofilm, they organize themselves into reproducible patterns and shapes that can be predicted with mathematical models. Credit: Cell Picture Show, by Fernan Federici, PJ Steiner, Tim Rudge, and Jim Haseloff, University of Cambridge.