West Nile Virus (WNV) is one of the leading causes of mosquito-born disease within the continental United States, 也是媒体报道最多的一个. The disease spreads most often via infected adult mosquitoes biting and feeding upon humans.
Late summer is often when the presence of mosquito-borne diseases like WNV upticks rapidly, 由于理想的天气条件(定期降雨), 湿度, 以及温暖的空气温度)有利于蚊子繁殖. Data reported to the Centers of Disease Control (CDC) by state health departments each year highlights the historical trend for a late summer uptick in West Nile Virus cases (see chart):
今天, we’re covering the steps an integrated mosquito management program should take to ensure early detection and prompt communications and control, including targeted adult mosquito control measures and preventive larval interventions.
诱蚊器, 比如乐虎网关系网里的人, are used to monitor regional mosquito populations and the presence of disease. Adult mosquitoes collected in surveillance traps are routinely collected and transported back to a laboratory w在这里 they are identified by species, 数, and then tested for the presence of West Nile Virus (WNV) using a RAMP or PCR diagnostic test.
Learn more about how mosquito-borne disease surveillance testing and labs, 包括乐虎网自己的PCR检测实验室, 操作 在这里.
如果蚊子样本呈西尼罗河病毒阳性, that means t在这里’s potential for the virus to transfer to humans through the bite of an infected mosquito.
Adult mosquito control treatments can help reduce the public health threat. 如果当地或区域蚊子开始检测为西尼罗河病毒阳性, many communities elect to schedule a preventative treatment to protect residents from the disease threat. It may also be appropriate to perform larval control in known breeding areas to prevent future transmission.
疾控中心是西尼罗病毒最可靠的信息来源. It reports that most people infected with WNV are asymptomatic – estimated to be 8 out of 10. Most that do have some sort of symptom present, 1 out of 5 infected, develop the following:
在严重情况下, 大约150个感染者中有1个, 西尼罗河病毒可以开始影响中枢神经系统, developing illnesses such as encephalitis (inflammation of the brain) or meningitis (inflammation of the membranes that surround the brain and spinal cord). 老年患者的风险更大, 以及那些有特定条件的人, 包括癌症, 糖尿病, 高血压, 肾脏疾病, 器官移植. Unfortunately, about 1 in 10 patients who develop these more severe symptoms die.
If you have these physical symptoms, the CDC recommends seeking medical treatment.
The CDC recommends these protective measures to protect against West Nile Virus transmission, and they all focus on avoiding mosquito bites when spending time outdoors.
We all appreciate being able to spend time outdoors without the nuisance of mosquito bites. 尤其是当蚊子传播的疾病在我们的社区活跃时, we’re reminded that mosquito control programs play a critical role in protecting public health.