Disease spread refers to how illnesses move from one person to another or from animals to humans. This can happen through various methods, such as direct contact, airborne transmission, or contaminated surfaces. Understanding these pathways helps in controlling outbreaks and protecting public health. Preventing disease spread involves measures like vaccination, hand hygiene, and wearing masks. Public health officials often track outbreaks to identify sources and implement strategies to reduce transmission. Awareness of how diseases spread is crucial for communities to stay healthy and minimize the impact of illnesses like influenza or COVID-19.