Delhi has recorded 136 dengue cases so far this year. The infection is transmitted through the infective bite of the Aedes aegypti mosquito and the risk of infection increases with the collection of more standing water, which rises during times of heavy rainfall. Early warning symptoms of dengue include flu-like symptoms, a sudden high-grade fever, pain behind the eyes and muscle pain.

from Times of India https://timesofindia.indiatimes.com/life-style/health-fitness/health-news/dengue-symptoms-136-dengue-cases-reported-in-delhi-learn-about-warning-signs-of-infection/articleshow/101692667.cms