Product Name:T168 Poc Walkie Talkie;Frequency:4G/WIFI/LTE;Keyword:GPS and Wifi Function;Function:Andriod System 6.0;Feature:Zello /Smart Real Ptt;talk distance:No talk distance limited;keywords:2G/3G/4G;Size (without antenna):153.5*54.5*35.5mm;Battery
摘要: 产生Verocytotoxin的大肠杆菌(VTEC)感染,尤其是大肠杆菌O157:H7感染可引起出血性结肠炎,溶血性尿毒综合征或血栓形成性血小板减少性紫癜.已证实感染严重者大多数是儿童和老人,但也可发生于各年龄组.传播的途径包括食用污染的食物(尤其是那些牛源性食物),水和人与人传播.虽已经发生了几次大的暴发,但多数感染病...