男女羞羞视频在线观看,国产精品黄色免费,麻豆91在线视频,美女被羞羞免费软件下载,国产的一级片,亚洲熟色妇,天天操夜夜摸,一区二区三区在线电影

Center

H5N1 virus may have mutated

By Teddy Ng and Chen Hong (China Daily)
Updated: 2006-06-17 09:01
Large Medium Small

The latest human bird flu infection on the Chinese mainland is worrying as it shows the H5N1 virus may have mutated and become as infectious in warm months as in cooler ones, Hong Kong's health chief said on Friday.

The virus thrives in lower temperatures and is usually most infectious in the cooler months between October and March.

But confirmation on Thursday that a 31-year-old truck driver in the southern city of Shenzhen has been infected has caused uneasiness.

"Is this because the virus has changed, so that it is highly infectious all year round? Or, if it is happening in summer, winter would be even worse?" said the Secretary for Health, Welfare and Food, York Chow.

He said the virus might have become "more virulent and spread wider than we've expected," though its mutation was not confirmed.

"If that is the case, the risk for humans to be infected in the future is higher," he added.

The truck driver was admitted to hospital and was critically ill on Friday. He had visited a market where live poultry was sold and eaten chicken before he fell ill. But he is not known to have had any other close contact with poultry.

University of Hong Kong microbiology head Yuen Kwok-yung said the Shenzhen case was abnormal and worried the disease would spread in winter.

"If there are human infections from June to August, it means the virus is extremely active. I am worried that a major outbreak will happen in winter," he said.

In neighbouring Shenzhen, authorities have stepped up virus prevention and surveillance efforts.

The local government said it will now report the situation relating to human bird flu cases every day.

The Shenzhen Centre for Disease Control and Prevention has been asked to enhance its surveillance of any pneumonia-like cases.

So far the city has not reported any poultry infections.

But vendors said they are required to disinfect shelves twice a day and stop on-the-spot slaughtering. Some supermarkets have stopped selling live chickens.

"Business is really bad. I didn't even sell one chicken today," said a vendor at a Xiangmei Road market.

主站蜘蛛池模板: 馆陶县| 阳朔县| 沅江市| 昌平区| 绥阳县| 杭锦后旗| 宿州市| 寿宁县| 原平市| 通海县| 绥中县| 临汾市| 南阳市| 金川县| 元江| 吴桥县| 南通市| 丁青县| 姚安县| 阳原县| 靖边县| 西林县| 井冈山市| 定西市| 江阴市| 阿克苏市| 禄劝| 金华市| 察隅县| 湘潭市| 河北区| 苍南县| 邵阳县| 蓬溪县| 视频| 保山市| 清丰县| 洛阳市| 江山市| 平利县| 民丰县| 兰考县| 中西区| 洮南市| 璧山县| 大宁县| 定日县| 刚察县| 商洛市| 左云县| 板桥市| 河源市| 滁州市| 沛县| 盐边县| 潜山县| 丹棱县| 多伦县| 鲁山县| 德江县| 古蔺县| 寿阳县| 漳浦县| 瑞金市| 始兴县| 曲阜市| 扬州市| 滕州市| 泗洪县| 汾阳市| 梁河县| 青阳县| 镇远县| 南丰县| 龙川县| 建平县| 定远县| 邢台县| 康保县| 东乌| 阿克苏市| 加查县|