Measles is a highly contagious infectious disease caused by the measles virus, leading to a full-body skin rash and flu-like symptoms. The disease manifests with high fever and general malaise. Measles is transmitted through the inhalation of respiratory droplets spread by infected individuals when coughing, sneezing, or talking, or through contact with surfaces contaminated by these individuals. The incidence of the disease typically increases in late winter and early spring. While measles is particularly common in young children, it can also occur in unvaccinated adults or those who have not previously had the disease.