👉 Infection refers to the process by which a pathogen, such as a virus, bacteria, or parasite, enters and takes control of a host's cells, leading to disease. The term "infection" specifically denotes an invasion where these pathogens disrupt normal cellular functions, often triggering an immune response. This disruption can cause symptoms ranging from mild discomfort to severe illness, depending on the pathogen and the host's immune system. Restrictions on infection are measures implemented by individuals, communities, or governments to prevent the spread of infectious diseases. These can include quarantine for exposed individuals, isolation of those infected, vaccination campaigns, and public health guidelines like hand hygiene and social distancing. Such restrictions aim to reduce transmission rates, protect vulnerable populations, and mitigate the overall impact of an outbreak.