There are 4 calories in 1 ounce of Iceberg Lettuce (Includes Crisphead Types). Calorie breakdown: 8% fat, 76% carbs, 16% protein.
Cryptosporidium (crip-toe-spor-ID-ee-um) is a protozoan, a single-celled parasite that lives in the intestines of animals and people.
The parasite can be found in soil, water or food and may be transmitted through surfaces that have been contaminated with the faeces of infected people or animals; Cryptosporidium requires a host in which to multiply and cannot grow in foods or water.he lifecycle of Cryptosporidium is complex and, with the exception of one stage, is completed in a single vertebrate host in one to eight days. Cryptosporidium is excreted in the faeces of an infected host in the form of oocysts (see diagram below, stage 1).