Amenorrhoea is a symptom with many potential causes. Primary amenorrhoea (menstrual cycles never starting) may be caused by developmental problems such as the congenital absence of the uterus, failure of the ovary to receive or maintain egg cells. Also, delay in pubertal development will lead to primary amenorrhoea.
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.
Besides malaria, there are many other diseases transmitted by mosquitoes, here are a few: Chikungunya, Dog Heartworm (can be a life-threatening disease for dogs) Dengue, Yellow Fever, Eastern Equine Encephalitis (infects horses and humans), West Nile Virus and Zika Virus.