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: 沭阳县| 疏勒县| 奇台县| 汉沽区| 东乡族自治县| 富源县| 新建县| 宣汉县| 体育| 南阳市| 安乡县| 西昌市| 聂拉木县| 大同市| 民丰县| 昭通市| 裕民县| 昌邑市| 泰来县| 昂仁县| 玉树县| 花莲市| 德惠市| 铜鼓县| 平罗县| 博湖县| 秀山| 南投市| 台东市| 西昌市| 鹤山市| 沈阳市| 土默特左旗| 盐边县| 栾城县| 吴堡县| 登封市| 镇坪县| 兰考县| 德江县| 定结县| 平泉县| 深州市| 上思县| 全椒县| 济源市| 信阳市| 普宁市| 广灵县| 博罗县| 石楼县| 和田县| 桂平市| 乌鲁木齐市| 岱山县| 麻阳| 大庆市| 陕西省| 灵台县| 苗栗县| 玉龙| 连江县| 义乌市| 航空| 屏边| 舞钢市| 舞钢市| 吕梁市| 冷水江市| 余庆县| 怀远县| 若尔盖县| 古田县| 洛南县| 沅江市| 建湖县| 康定县| 长兴县| 平山县| 南宫市| 南投县| 石台县|