疟疾试纸 疟疾抗原检测试纸/大板（出口专用）

疟疾抗原检测试纸/大板（出口专用）

广州健仑生物科技有限公司

传播
  疟疾大多通过雌性按蚊叮咬传播。共有400多种按蚊，其中约有30种是较严重的疟疾病媒。所有这些主要病媒物种均在黄昏至拂晓期间叮咬。传播严重程度取决于寄生虫、病媒、人类宿主和环境等有关因素。

  按蚊在水中产卵，蚊卵孵化成幼虫，zui终变为成蚊。雌蚊需要为产卵吸血。每种按蚊有其各自偏爱的繁殖地点，例如有些按蚊喜欢在热带国家雨季常见的小水洼和动物踩踏后留下的泥潭等淡水蓄积处滋生。

  在按蚊生命周期较长（使寄生虫有时间在按蚊体内完成发育）和按蚊偏好叮咬人类而不是其它动物的地方，传播更为严重。例如，非洲病媒按蚊生命周期长，且特别喜欢叮咬人类，这是造成近90%的疟疾死亡病例集中在非洲的主要原因。

  传播还取决于可能影响蚊子数量和存活的气候条件，例如降雨模式、温度和湿度等。在许多地方，传播是季节性的，在雨季中或雨季结束后不久，传播达到。在人们对疟疾没有多少免疫力或毫无免疫力的地区，如果气候以及其它环境突然变得利于传播，可能会出现疟疾流行疫情。另外，如果免疫力低下的人进入疟疾密集传播地区（如寻找工作或避难等），也可能会出现疫情。

  人类免疫力是另一重要因素，在存在中度或严重传播条件的地区居住的成年人中尤甚。多年接触会形成一定的免疫力，虽然这并不能*防护，但它确实会降低感染疟疾后出现重症的风险。所以，非洲多数死亡病例发生在幼童中，而在传播较少、免疫力低的地区，所有年龄组均面临风险。

疟疾抗原检测试纸/大板（出口专用）

spread
Most of the malaria is spread by female Anopheles. There are more than 400 kinds of Anopheles, of which about 30 are more serious malaria vector. All of these major vector species were bitten during the evening to dawn. The severity of the transmission depends on factors such as parasites, vectors, human hosts and the environment.
Anopheles lay eggs in water, mosquito eggs hatch into larvae, and eventually become mosquitoes. Female mosquitoes need blood for oviposition. Each Anopheles has their own favorite breeding sites, such as some Anopheles mosquitoes like in the tropical rainy season common small puddles and animals trampled behind the quagmire and other fresh water accumulation.
In the anopheles longer life cycle (so that parasites have time to complete development in the anopheles) and anopheles prefer bites human beings rather than other animals where the spread is more serious. For example, the African disease Anopheles has a long life cycle and is particularly fond of biting humans, which is the main cause of nearly 90% of global malaria deaths concentrated in Africa.
The transmission also depends on climate conditions that may affect the number and survival of mosquitoes, such as rainfall patterns, temperature and humidity. In many places, the spread is seasonal, and in the rainy season or shortly after the rainy season, the spread reaches its peak. In areas where there is little immunity or no immunity to malaria, malaria epidemics may occur if the climate and other environments suddenly become conducive to transmission. In addition, if the low immunity of people into the malaria-intensive areas (such as looking for work or refuge, etc.), may also be an outbreak.
Human immunity is another important factor, especially among adults who live in areas with moderate or severe transmission conditions. Years of contact will form a certain degree of immunity, although this can not be compley protected, but it does reduce the risk of severe malaria after infection. As a result, most of the deaths in Africa occur in young children, and in all areas where transmission is low and low immunity, all age groups are at risk.

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