Vol. 9, Special Issue 4, Part I (2025)

Climate change is one of the biggest problems faced throughout the world due to which abnormal seasonal changes, weather pattern, changes in the precipitation, rise in earth’s atmospheric temperature leading to extreme weather conditions causing flood or drought. Flood causes stagnation of water and lead to vector breeding sites like mosquitoes and other insects. The increase in global temperature by 1^oC affects both vectors and pathogens physiology and may result in increase in the population of vectors and pathogens. In India flood and drought has caused the increase in the breeding of insect vectors, During drought and flood drinking water problems are caused and affect human and animals. Different virus pathogens enter into the human body and lessen the immunity to fight and cause viral diseases in human and multiplication of viruses will be fast during this period, Few of the disease causing viruses are Influenza (Flu), Respiratory Syncytial Virus (RSV), Rhinoviruses (Common Cold), Human Parainfluenza Virus (HPV) infection. Human Metapneumovirus (HMPV) infection. Measles. Coxsackie virus, Viral hepatitis, chikungunya, dengue, enteric fever caused by rotavirus norovirus, chicken pox, Japanese encephalitis, West Nile disease, and acute respiratory infection.