Recently, frequent rainfall across many parts of China has created breeding grounds for mosquitoes from standing water around houses. According to the Wanxiu District Health Bureau of Wuzhou, Guangxi, 228 cumulative dengue cases had been reported locally as of 18:00 on July 13. Shandong CDC forecasts that mosquito density across the province will rise overall in late July compared with mid‑July, with most of central and southern Shandong reaching Level‑5 high‑risk status.
Aedes albopictus, commonly known as the Asian tiger mosquito, was specifically mentioned in Shandong’s warning. It has reached its annual peak of activity.
The Asian tiger mosquito brings more than just bites
The Asian tiger mosquito features distinct white stripes on its black body. It does not require large bodies of water for breeding. Small pools of standing water in flower‑pot trays, waste tires, buckets or beverage cans can serve as its breeding sites. It is most active during early morning and late afternoon.
Source: Internet
Apart from redness, swelling and itching after bites, the Asian tiger mosquito may also transmit dengue fever and chikungunya. Both diseases cause fever, rashes and body aches. Dengue fever is commonly accompanied by headache, retro‑orbital pain and myalgia‑arthralgia. Joint pain is usually more prominent in chikungunya, and may persist for some time in some patients even after fever subsides.
Source: Internet
Mosquitoes are indispensable for the transmission of both diseases. After biting an infected person, Aedes mosquitoes bite other people, enabling the virus to keep spreading. Prompt removal of standing water and proper mosquito‑prevention measures help reduce Aedes breeding and bites, thus lowering transmission risks.
What Does Rising Mosquito Density Mean?
Do not directly interpret a "high‑risk mosquito‑density alert" as an ongoing epidemic. It signals mosquito activity levels rather than confirmed disease cases.
Simply put, the greater the number of Aedes albopictus and the more frequent their bites, the more favorable the conditions become for mosquito‑borne disease transmission. Once an infection source is introduced, the risk of virus spread via mosquitoes rises.
The recent alternation of high temperatures and rainfall easily creates standing water in flower‑pot trays, discarded containers, green‑space corners and other spots, offering breeding grounds for Aedes albopictus. Therefore, mosquito‑density alerts are not intended to cause panic. Instead, they remind the public to remove standing water promptly, reduce mosquito bites and bring down mosquito density before risks escalate into an epidemic.
Source: Internet
From Removing Standing Water to Sustained Mosquito Control
To guard against the "two fevers", start with eliminating mosquito breeding grounds. Check and clear standing water promptly after rainfall from places such as flower‑pot trays, water buckets, tires and drainage ditches. Indoors, install screen doors and windows. When going outdoors, wear long‑sleeved shirts and long trousers, and use certified mosquito‑repellent products as instructed to minimize mosquito bites.
Even after standing water is removed, adult mosquitoes already in flight will not disappear immediately. Especially in open areas including courtyards, community greenbelts and parks, screens and personal protection have limited coverage, so sustained adult‑mosquito control is required.
The GREENYELLOW GM977A outdoor bionic mosquito trap does not lure mosquitoes with light. Instead, it simulates human respiration and odor signals to draw in blood‑feeding female mosquitoes before capturing them physically. No chemical agents are used throughout the process, and disturbance to light‑attracted beneficial insects is also reduced.
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