Infectious disease prevention involves strategies to stop the spread of illnesses caused by pathogens like bacteria, viruses, and parasites. Key methods include vaccination, which helps the immune system recognize and fight off specific diseases, and practicing good hygiene, such as regular handwashing and using hand sanitizers. Another important aspect is public health education, which informs communities about how to avoid infections, such as staying home when sick and covering coughs and sneezes. Additionally, safe food handling and proper sanitation in environments like schools and hospitals are crucial to reducing the risk of outbreaks.