These filters work to remove bacteria, protozoa and microbial cysts that can cause disease.

When food is scarce, members of the genus have the ability to become dormant by forming a microbial cyst.

Some classes of bacteria can turn into exospores, also known as microbial cysts, instead of endospores.

Additionally, Cabbage clubroot may be a stubborn disease due to its ability to form a microbial cyst as an overwintering structure.

Giardia infection can occur through ingestion of dormant microbial cysts in contaminated water, food, or by the faecal-oral route (through poor hygiene practices).

If you are also concerned about health effects, for example, from microbial cysts, lead, asbestos, pesticides and herbicides, mercury and turbidity, look for a product that meets Standard 53.

The parasite is transmitted by environmentally hardy microbial cysts (oocysts) that, once ingested, exist in the small intestine and result in an infection of intestinal epithelial tissue.

In environments that are potentially lethal to the cell, an amoeba may become dormant by forming itself into a ball and secreting a protective membrane to become a microbial cyst.

Typically bacteria, protozoa, and microbial cysts are removed but the filters are not effective against viruses since they are small enough to pass through to the other "clean" side of the filter.

A microbial cyst is a resting or dormant stage of a microorganism, usually a bacterium or a protist or rarely an invertebrate animal, that helps the organism to survive in unfavorable environmental conditions.

The K-Pg boundary record of dinoflagellates is not as well-understood, mainly because only microbial cysts provide a fossil record, and not all dinoflagellate species have cyst-forming stages, thereby likely causing diversity to be underestimated.