单词：Plectrovirus
单词：Plectrovirus 相关文章
High-Tech Images Show How Viruses Infect Cells At the University of Texas Medical School at Houston, Jun Liu uses a powerful electron microscope to examine E. coli bacteria and the tiny T-7 virus that infects them. Liu says until now, scientists coul
VOA标准英语2013年(一月)
Slow Progress on Curbing Deforestation Expected at Climate Conference In Indonesia, a moratorium on new forest development appears to have little effect as farmers and large companies continue cutting down trees for timber, then burning off the land
VOA标准英语2012年(十二月)
By Melinda Smith Washington, D.C. 19 February 2007 watch Norovirus report It can be called stomach flu, food poisoning or acute gastroenteritis. Medical experts call it the Norovirus, and this family of viruses causes diarrhea, nausea, vomiting and
2007年VOA标准英语（二月）
Dengue Severity Depends on Prior Infection, Genetic Variation American and Nicaraguan scientists have discovered the reason why a second infection with dengue can often be much more serious, even fatal, than the first. Dengue is a viral disease sprea
VOA标准英语2011年(十二月)
Work crews have started paving Southern Sudan's first highway, which will connect the new nation to the international community. This highway brings the south one step closer to full independence. A military band welcomed Southern Sudan's president,
VOA标准英语2011年(二月)
By Lisa Schlein Geneva 06 August 2007 The World Health Organization says all countries, with the exception of Indonesia, are sharing their avian influenza viruses. WHO says the failure to share virus samples could retard the development of an effecti
2007年VOA标准英语（八月）