با مشاهده 8 بيمار و يك مرگ در تركيه بعلت هانتا ويروس مسولين بهداشتي هشدار دادند.
توجه خاص به موش ها و جوندگاني كه مخزن اين ويروس شناخته شده اند و مبارزه جدي با جوندگان ، در مناطق آلوده از فعاليت هايي است كه در برنامه بهداشت تركيه قرار گرفته است. در غير اين صورت متخصصين اعلام كرده اند كه در روزهاي آينده احتمال آلودگي موش هاي شهري و حتي خانگي به اين ويروس وجود دارد و بيماري در زمان كوتاهي به حالت اپيدمي در خواهد آمد.
استاد دانشگاه آنكارا ، دپارتمان بهداشت جامعه ، پروفسور دكتر رجب آكدور مي گويد: ويروس هاتان از جوندگان به خصوص سنجابها و موشها ، در بزاق ، ادرار ، و مواد دفعيشان و يا با گزش مستقيم به انسان قابل انتقال است.
بيماري در انسان با ايجاد تب خونريزي دهنده موجب پيامدهاي سخت ومرگ آور مي شود.
بيماري چون براي اولين بار در كره در طراف رودخانه هاتان ديده شده به اين نام خوانده شده است. اين ويروس براي اولين بار است كه در تركيه ديده شده است.
از مهمترين علائم آن: تب بالا ، لرز، سر درد، تهوع، حالت ذات الريه شش ها،ديده مي شود. بعلاوه ايجاد خونريزي در جلد و مخاط ها، ناراحتي هاي كليه از ديگر علائم كلينيكي اين بيماري اند.
دوره بيماري 12 تا 21 روز است. و حتما بايد به مراكز بهداشتي مراجع شود.
ادامه مطلب...
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It looks like another good year for ticks, which can cause debilitating Lyme disease.
“It’s been a pretty good crop so far,” said Lyric Bartholomay, a professor of medical entomology and head of the Lyme Disease Surveillance program at Iowa State University.
“The ticks are out there,” said Brian Hanft, manager of environmental health service for the Cerro Gordo County Department of Public Health. “The trick is, how do you control them?”
Hanft said ticks are generally stopped by DEET-based repellents. He recommends a concentration of 35 percent DEET, which lasts longer than the 15 percent variety. Other tips:
ادامه مطلب...
Genetic modification turns plant virus into delivery vehicle for green-friendly insecticide, say University of Florida researchers
Gainesville, Florida
December 12, 2006
A plant-destroying virus farmers call one of their worst enemies may soon be an ally in the fight against crop pests and mosquitoes, say University of Florida (UF) researchers.
Scientists genetically modified tobacco mosaic virus so that it produces a natural, environmentally friendly insecticide, turning the pathogen into a microscopic chemical factory, said Dov Borovsky, an entomologist with UF’s Institute of Food and Agricultural Sciences. The modified virus is almost completely harmless to plants and simply produces the insecticide.
Plants inoculated with the virus quickly accumulate enough of the insecticide to kill insect pests that consume their leaves, said Borovsky, who works at the Florida Medical Entomology Laboratory in Vero Beach and is affiliated with UF’s Genetics Institute. Once harvested, the plants can be processed to make mosquito control products.
ادامه مطلب...
طرز انتشار يک ويروس جديد درجهان
بيماری - دکتر سيد محمد ابوترابي:
مشکل آنفلوآنزاي مرغي و ايدز هنوز تمام نشده اند که ويروس جديدي بر سر مردم جهان سايه افکنده است.
البته شدت بيماري ناشي از اين ويروس مثل ايدز و آنفلوآنزاي پرندگان نيست ولي به هر حال يک بيماري جديد است و مرکز کنترل و پيشگيري بيماريهاي آمريکا، در مورد انتشار اين ويروس جديد که با گسترش خود جهان را تهديد ميكند و در حال حاضر در قاره هاي آسيا و آفريقا منتشر شده، هشدار داده است.
ادامه مطلب...
Shrinkwrap, Zap or Blow Lice Out of Your Hair
by
Close-up of human head louse. Corbis © 2006
Myths About Lice
For centuries now, pets, dirty kids and dirty houses have been blamed for spreading head lice. Harvard lice expert Richard Pollack sets the record straight. Scroll down for that story.
University of Utah biologist Dale Clayton demonstrates the latest prototype of the LouseBuster on his daughter, Miriam.
Morning Edition, November 30, 2006 · As resistance to traditional insecticides grows in head lice, some researchers are abandoning poison shampoos and taking a different approach. Their goal is a physical, mechanical way of killing the parasites, like hammering a stake through the heart of these little vampires.
One idea is to dry lice out, sucking out their moisture until they become harmless little husks.
ادامه مطلب...
Devastating tropical disease arrives on U.S. shores
Several states report mosquito-borne virus
By Amy Ellis Nutt
Newhouse News Service
Published November 24, 2006
ATLANTA -- Chikungunya, a severe and sometimes deadly infectious disease that has devastated the islands of the Indian Ocean, has arrived in the United States.
Colorado, Louisiana, Maryland, Minnesota and at least a half-dozen other states have reported cases of travelers returning from Asia and East Africa sick with the virus, according to the Centers for Disease Control and Prevention.
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Victory in louse wars?
Last month, experts from around the world gathered in Buenos Aires to swap battle tactics at the Third International Congress on Phthiraptera, the group of 3,000 species of wingless parasitic insects that includes Pediculus capitis, bane of parents and school nurses across the land.
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Groundbreaking research in the labs of chemical ecologist Walter Leal and genetics researcher Deborah Kimbrell shows that genetically engineered fruit flies responded to the silkworm moth scent of a female.
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Mind the bed bugs don't bite as critter numbers boom
... Expert Elizabeth Kidman from Cambridge University's Medical Entomology Centre said yesterday (wed): 'Following the introduction of DDT as a pest control agent ...
ادامه مطلب...
Don't let the bed bugs bite
BRITAIN'S love affair Don't let the bed bugs bitewith foreign travel has sparked a bed-bug boom, according to a Cambridge expert.
The bugs that feed at night off human blood had been in decline and were largely thought to have bitten the dust.
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وبلاگ
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