单词:infectious poiyarthritis of rats
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Send in the Rescue Rats By Emily Singer 2004, New Scientist Magazine. Reed Business Information Ltd. All rights reserved. Distributed by Tribune Media Services. Rats equipped with radios that transmit
Now, Words and Their Stories, a weekly program from VOA Learning English. Today we will be talking about a hated but misunderstood animal the rat. The sight of a rat might frighten you. Or it might make you sick to your stomach. Well, perhaps not eve
DEVELOPMENT REPORT -February 18, 2002: Infectious Diseases By Jill Moss This is the VOA Special English Development Report. The World Health Organization and several other United Nations agencies are
This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? A direct effect on human health related to climate change is the likely increase in infectious diseases transmitted by insects or through contaminated water. In the Marc
BEIJING, Aug. 7 (Xinhua) -- Infectious diseases claimed 1,669 lives on the Chinese mainland in July, with AIDS contributing to 70 percent of the deaths, the Ministry of Health (MOH) said Tuesday. A total of 5,552 AIDS cases, which is categorized as a
A recent study found almost 60 percent of surgical residents admitted they had sustained needlestick injuries when they were medical students. Blunt tip needles, such as this one, are considered safer A recent study shows that medical students and ho