An Aedes aegypti mosquito is seen inside a laboratory. — Reuters/File Like other Asian countries, Pakistan is going through a climate crisis due to which summers become brutal and winters become milder with each passing year. The Lancet reports that due to rising temperatures, there has been an outbreak of many arboviral diseases in the region as well as in Pakistan, including malaria, dengue and now Chikungunya. Against this backdrop, Karachi has been witnessing a rise in Chikungunya cases since at least May this year, with hospitals in the metropolis reporting suspected patients of the virus daily. What exactly is