Subacromial impingement occurs when the subacromial space is narrowed and weak structures in that space get compressed. Several causes for subacromial impingment have been detected: 1  Anatomical variations such as narrow SA space, type II or III acromion, osteophytes.ubacromial impingement occurs when the subacromial space is narrowed and weak structures in that space get compressed. Several causes for subacromial impingment have been detected: 1  Anatomical variations such as narrow SA space, type II or III acromion, osteophytes.
Diseases transmitted by mosquitoes include: malaria, dengue, West Nile virus, chikungunya, yellow fever, filariasis, Japanese encephalitis, Saint Louis encephalitis, Western equine encephalitis, Eastern equine encephalitis, Venezuelan equine encephalitis, La Crosse encephalitis and Zika fever.
8 ways to keep mosquitos away naturally. Keep mosquitos away naturally. Mosquitoes transmit diseases to an estimated 600 million people annually worldwide, of which millions that are infected will result in death. The mosquito borne diseases are the viral disease yellow fever, dengue fever, and mostly the Aedes aegypti mosquito transmits them. The genus Anopheles mosquito carries malaria.