Oocysts

Oocysts are tiny, hardy structures formed by certain parasites, such as protozoa, to protect themselves and survive outside a host. They act like eggs, containing the parasite's developing form. Oocysts are often shed in the stool of infected animals or humans and can contaminate water, soil, or food. When ingested, these oocysts can hatch inside the new host, leading to infection. Their durability allows them to persist in the environment for long periods, making them an important factor in the spread of parasitic diseases. Proper sanitation and hygiene are essential to prevent transmission linked to oocysts.