Seasonal illnesses are health conditions that tend to occur during specific times of the year. Common examples include the flu and common cold, which are more prevalent in the winter months. Allergies, such as those caused by pollen in the spring, also fall under this category. These illnesses often arise due to changes in weather, increased exposure to certain allergens, or the spread of viruses. Preventive measures can help reduce the risk of seasonal illnesses. Vaccinations, like the flu shot, can protect against certain viruses, while staying indoors during high pollen counts can help manage allergies. Maintaining good hygiene, such as regular handwashing, is also essential in preventing the spread of infections.