Special Report: # WAAVP2013 Part I (random lancets, dolphins and turtles feces parasites)

February 22, 2014 by · Leave a Comment
Filed under: Parasite and Worm News 

Last month, I attended the 24th International Conference of the World Association for the Advancement of Veterinary Parasitology (WAAVP 2013). While veterinary parasitology is not my usual scene, there was also a joint conference with the Australian Society annual meeting Parasitologists, and there was also a lot of wildlife and parasitology water on program that piqued my interest. The main themes of the conference were food security and public health as regards noise. As it is a major international conference and there were several concurrent sessions, conversations that I write about will be greatly sought here on my own experiences and interests – but if any of you read WAAVP Also 2013 visits, do not hesitate to leave your own highlights in the comments.

The night of the reception of the conference began with a public event shouting “pests and pets, pets and you,” I live tweeted (See Storify here.) The presentations were the creatures that live in and on animal well-loved by the people, and that the solution to many myths and misunderstandings about parasites. addressed zoonosis The presentation and how it is during can catch parasites of your pet, you are more likely to get parasites from the people around you, and you’re more likely to Toxoplasma gondii of infected cats food. (On a side note, upon receipt of the night, I took some memories corresponding thematic – see photo above)

class = “tr-caption” style = “text-align: center;”> Photo of Mongo

The first day of the conference began with a plenary session on the history of veterinary parasitology in Australia by Ian Beveridge and Brown Besier. Later in the morning, I attended a presentation by Melissa Beck Dicrocoelium dendriticum For those who do not know, D. dendritium is also known as the spear known random -. parasite for the brain there kidnap its host ant, the causing it to climb to the top of the blade of grass and all night, waiting to be eaten famous for its next host (mammal grazing as sheep or deer). research Beck looked at the pattern age-related infection start randomly in elk release (Cervus candensis ) in Alberta, Canada. study was in Cypress Provincial Park Hills, Canada performed ( So I guess you can say that the ants in this area who are infected lancet flukes * [don sunglasses] * – Insane In The Membrane ). It found that the moose seem to have become less infected, as they age, with the majority found leeches in the host population among youth. This can be done by adult moose with a more robust immune system, which prevents infected always the coincidence of the lancet, or it could also involve some kind of behavioral defenses that develop in mature individuals (adults learning avoid moose eating grass ant-load?).

Later that day, I made a presentation on a study I conducted with my colleague Amanda Bates on the global model of disease outbreaks in aquaculture (which you can read here free), and then I saw a meeting on parasite diversity that currently plague aquaculture worldwide. It was a conference Ronald Kaminsky on the development of anti-parasitic compounds and salmon lice, which are developed in resistance to order. It was followed by Supranee Chinabut that addresses the different types of parasites infect fish in captivity in South-East Monogenea (ectoparasites flat worms), crustacean parasites, protozoa and infectious diseases (such as Trichodina incredibly beautiful ) emphasizes the importance. several strategies to deal with outbreaks of different kinds of parasites

At the same meeting Kyle McHugh presented a study examining how the introduction of species fishery and aquaculture popular as bass large carp mouth and attacked them with various parasites such as anchor worm and tapeworm Asian fish, which is now coming into its own fish native to South Africa fresh water. Finally, Zoe Spiers presents some results of a study into the etiology of the syndrome of winter mortality of oysters – a disease that causes significant losses, the oyster beds of the coast of New South Wales, Australia each year . The study focused on a combination of ecology, histopathology and molecular biology, and while it is generally accepted that the syndrome of winter mortality of oysters is a disease caused by the protozoan parasite Bonamia roughleyi , the result presented Spiers indicates that symptoms are not always associated with rougleyi B. and the agent (s) actual mortality that Winter is not yet clear.

class = “tr-caption” style = “text-align: center;”> Photo by Richard Ling

Keep the theme of water, the next morning, I attended a session on water parasitology Sarah Catalano (she presented a paper on this parasite in Society Last year in Australia for the session of Parasitology) on the use of weird and wonderful to distinguish parasites dicyemid on different sub-populations of squid in the waters of South Australia. Dicyemids are very strange parasites live exclusively in the renal sac of cephalopods and its exact taxonomic position on the tree of life is not currently known.

Carlos Hermosilia a study that was quite amazing in their method of execution. Hermosilia research on parasites of dolphins, but while most studies to reach the stranded dolphin sample of dead dolphins, living parasites that hunt dolphins, and I mean that literally. His method is to swim with dolphins after a tube and picked up their excrement (or vomiting). It is true, as a responsible dog owner could recover after their pooch, but with the dolphins – the most powerful swimmers – not to mention feces dolphins coming in a cloud instead of Fido pretty crap. Needless to say, the equivalent of pinball with a pooper scoop the flush not sound like an easy task. He found that the dolphins play all protozoa and parasitic worms usually in the intestines, which can be expected from a marine mammal, but an unexpected discovery was a Assel cymothoid in a dolphin sample of vomit. Cymothoids are generally parasites of fish (including infamour “biting tongue”), it is likely that shellfish could, dolphin comes from eating fish. hunting

history Hermosilia dolphin and pick up feces was followed by a lecture on the chance spirochiid blood of sea turtles by Phoebe Chapman. Spirochiid random blood can cause disease in sea turtles and there are 91 species spirorchiids reported worldwide, 30 of which have been found in marine hosts. Found in the species of sea turtles live in the cardiovascular system of the host, they mate and lay eggs – which is the main cause of the disease (at this stage we do not know how to reach the egg the external environment – it is even expect an assumption that they are easier to organize than for the sector to be published). Eggs of spirochiid settle in the organs of turtles, causing an embolism, thrombosis, pulmonary fiborsis and a long list of other internal injuries. Currently, there is no way to detect the presence of spirochiids in the host while it is still alive and part of the research Chapman include the development of a method for the diagnosis of infection spirochiid live animals.

I write about the rest of Tuesday and the rest of the conference in the second part of my special report on WAAVP 2013. Stay tuned because there’s more to come, including biting tongue, snails and leeches on the rocks, ticks (actual ticks, not plastic) and various weird and wonderful wildlife parasites.

Parasite the day

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