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.
1 West Nile Virus (WNV). 2  West Nile virus is a disease transmitted to people, horses, and birds. 3  It is the most commonly reported mosquito-transmitted disease in Minnesota. 4  Most people infected with West Nile virus show no symptoms or flu-like symptoms, but some (primarily elderly) have more severe illness.hile mosquito-transmitted disease is not as common in Minnesota as it is in tropical climates, there are several diseases of potential concern to Minnesota residents. Minnesota residents who travel to other countries can return with tropical diseases such as malaria or dengue. 1  West Nile Virus (WNV).