单词：veinal necrosis virus
单词：veinal necrosis virus 相关文章
This is the VOA Special English Health Report. Swine flu is a respiratory sickness caused by an influenza virus that mainly infects pigs. However, sometimes the virus can sicken humans. That is what has happened in Mexico in the last few weeks. The
VOA慢速英语2009年（四）月
By Stephanie Ho Washington 01 January 2006 U.S. health officials acknowledge they do not know if the H5N1 flu virus that has led to the deaths of millions of poultry in Asia and has recently been foun
2006年VOA标准英语（一月）
SCIENCE IN THE NEWS -August 20, 2002: U.S. Doctors Separate Guatemalan Sisters Joined at the Heath / West Nile Virus Spreads in the United States Broadcast: VOICE ONE: This is Ray Freeman. VOICE TWO:
科技之光
This is the VOA Special English Health Report. Evidence is increasing that common influenza viruses are becoming resistant to the main drug used to treat them. The drug is oseltamivir, also known as Tamiflu. The most common seasonal flu virus found
VOA慢速英语2009年（三）月
By Lisa Bryant Paris 15 February 2006 Experts meeting in Brussels Wednesday and Thursday are promoting a series of measure to fight the spread of bird flu in the European Union. The meeting comes as n
2006年VOA标准英语（二月）
By Phuong Tran Gaga, Chad 14 May 2007 For years, hundreds of thousands of Sudanese who fled fighting in Darfur have received shelter in refugee camps in neighboring Chad. But having survived the violence, they now face a new threat in the deadly AIDS
2007年VOA标准英语（五月）