在这部The Winged Scourge片中,如果有“挥动翅膀的祸根”这样的称谓的话，疟疾蚊子绝对可以荣列榜首。它吸食血液的过程中容易在身上携带大量寄生虫，进而将寄生虫传到一个健康人的血液之中，从而带来疾病和穷困，造成难以估计的损失。有什么办法能够阻止惨剧发生呢？跟随七个小矮人，我们可以看到，对水源进行彻底地消毒有助于消灭虫卵（如割除水草、洒油和巴黎绿、填埋或疏导死水），遏制疟疾蚊子的繁殖。此外在家中还可以采用各种手段防止蚊子的入侵，一切的一切，都是为了保证人民的身体健康！
本片为迪士尼公司在二次世界大战期间被政府徵收后，应相关部门要求拍摄的系列宣传短片之一。
In this propaganda short, the viewers are taught about how the mosquito can spread malaria. A young mosquito flies into a house and consumes the blood of an infected human. She then consumes the blood of a healthy human, transmitting the disease into him. It turns out that this is actually a film within a film and the Seven Dwarves are watching it. They volunteer to get rid of the mosquito by destroying her breeding grounds.
