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Latest Parasitism Stories

2012-03-05 13:09:51

New mathematical model explains how hosts survive parasite attacks In nature, how do host species survive parasite attacks? This has not been well understood, until now. A new mathematical model shows that when a host and its parasite each have multiple traits governing their interaction, the host has a unique evolutionary advantage that helps it survive. The results are important because they might help explain how humans as well as plants and animals evolve to withstand parasite...

2012-02-29 10:42:48

Some disease-causing parasites are known to favor one sex over the other in their host species, and such differences between the sexes have generally been attributed to differences in immune responses or behavior. But in a new article, published February 28 in the magazine section of the online, open-access journal PLoS Biology, David Duneau from Cornell University and Dieter Ebert from the University of Basel now propose that all sorts of characteristics that differ between the sexes of the...

2012-02-27 10:57:52

Squirrels and raccoons will give up food to avoid ticks Here´s a riddle: What´s the difference between a tick and a lion? The answer used to be that a tick is a parasite and the lion is a predator. But now those definitions don´t seem as secure as they once did. A tick also hunts its prey, following vapor trails of carbon dioxide, and consumes host tissues (blood is considered a tissue), so at least in terms of its interactions with other creatures, it is like a lion...

2012-02-23 18:00:54

Scientists have discovered a new target in their fight against the devastating global disease 'malaria' thanks to the discovery of a new protein involved in the parasite's life cycle. The research has uncovered a vital player in the sexual phase of the malaria parasite's reproduction which could prove an effective target for new treatments to stop the disease in its tracks. The scientists from The University of Nottingham's School of Biology, with collaborators from the Universities of...

Fruit Flies Use Alcohol To Fight Parasites
2012-02-17 05:42:03

[ Watch the Video ] According to new research, alcoholic beverages might just be a new form of medication to help fight off parasites. Researchers reported in the February 16 edition of Current Biology that fruit flies will actually seek out alcohol to kill off blood-borne parasitic wasps living within them. They said that the discovery offers some of the first evidence that alcoholic drinks may be useful in fighting infections. "We found that environmental alcohol protects fruit...

2012-02-14 11:45:07

New research from the University of Melbourne shows how the malaria parasite (Plasmodium falciparum) changes into a banana shape before sexual reproduction, a finding that could provide targets for vaccine or drug development and may explain how the parasite evades the human immune system. The work was conducted by an Australian research team led by Dr Matthew Dixon and PhD student Megan Dearnley from the Department of Biochemistry and Molecular Biology, Bio21 Institute at the University...

2012-02-01 07:09:58

(Ivanhoe Newswire) — Malaria is a parasite disease that is passed from one human to another by the bite of infected Anopheles mosquitoes.  The parasites enter the blood stream and infect red blood cells. The disease involves shaking, chills, high fevers, anemia, and flu-like symptoms. There are approximately 300-500 million cases of malaria each year and more than 1 million people die from it, according to the United States National Library of Medicine.  Although most cases...

2012-01-18 21:33:00

The discovery by researchers from the Walter and Eliza Hall Institute of a molecule that is key to malaria's 'invisibility cloak' will help to better understand how the parasite causes disease and escapes from the defenses mounted by the immune system. The research team, led by Professor Alan Cowman from the institute's Infection and Immunity division, has identified one of the crucial molecules that instructs the parasite to employ its invisibility cloak to hide from the immune system,...

2012-01-12 21:53:48

Genome sequencing helps identify essential protein in disease-carrying parasites Researchers from Boston College have discovered a protein that plays a pivotal role in the progression of the deadly diseases toxoplasmosis and malaria and shown that its function could be genetically blocked in order to halt the progress of the parasite-borne illnesses, the team reports in the current edition of the journal Science. The protein, identified as DOC2.1, plays a similar role in the secretion...

Keep Arms And Legs Hairy To Keep Bed Bugs Away
2011-12-15 12:21:04

Looking to avoid confrontations with bed bugs? You will be better off not shaving your legs according to researchers in the UK. Twenty-nine volunteers bravely tested the theory by Michael Siva-Jothy, from Sheffield University´s Department of Animal and Plant Sciences, BBC News is reporting. Siva-Jothy found that more layers of both long and short body hair near the surface appeared to work as a deterrent to the blood-sucking insects, with the finer hairs acting as an early warning...


Latest Parasitism Reference Libraries

Lancet Liver Fluke, Dicrocoelium dendriticum
2014-01-12 00:00:00

The lancet liver fluke (Dicrocoelium dendriticum) is a parasitic worm that is classified within the Platyhelminthes phylum. It is thought to be native to over thirty countries including Switzerland, Spain, Germany, Iran, China, Vietnam, Japan, Ghana, and Nigeria, among many other areas. It is also found in South and North America and in Australia. It is typically found in cattle or other grazing species, so it is thought to prefer a habitat that supports these species. It is similar in...

Profilicollis
2014-01-05 00:00:00

Profilicollis is a genus of acanthocephalan parasites that are found in crustaceans and shorebirds. Profilicollis parasites use decapod crustaceans as intermediate hosts and species of shorebirds as definitive hosts. The parasite first develops in mole crabs of North and South America. After it infects a mole crab, it becomes dormant until the crab is eaten by a suitable bird, such as a Surf scoter or Herring Gull. Once the parasite has passed through the stomach of the bird, it develops...

Moniliformis moniliformis
2014-01-05 00:00:00

Moniliformis moniliformis is a species of acanthocephalan parasite that can infect humans, though it rarely does. Human infections have been reported in the United States, Iran, Iraq, and Nigeria. It has been found in rats all over the world, and usually is found in cats, dogs and, in Poland, red foxes. Intermediate hosts are usually beetles and cockroaches. This parasite, like other acanthocephalans, does not have a digestive tract. It absorbs nutrients through the tegument (external...

Giant Thorny-headed Worm, Macracanthorhynchus hirudinaceus
2014-01-05 00:00:00

The Giant Thorny-headed Worm (Macracanthorhynchus hirudinaceus) is a species of acanthocephalan parasite found in the intestines of pigs and other hoofed animals, and can occasionally appear in humans and dogs. The eggs of this parasite are usually found in scarabaeoid or hydrophilid beetles and other similar insects. Worms of this species range in size from less than four-hundredths of an inch to over 15 inches. It causes enteritis, gastritis or peritonitis in affected hosts. While it...

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Word of the Day
malpais
  • The ragged surface of a lava-flow.
'Malpais' translates from Spanish as 'bad land.'