Cryptosporidiosis Cryptosporidium Parvum

·         It belongs to Phylum Sporozoa of kingdom Protista.

·         It is also unable to move due to the lack of cilia or flagella.

·         Mode of transmission: Fecal-oral route (Food borne/ water borne contaminated by oocysts)

·         Host: Cow/Human/ Dog/Cat/Goat

·         Human also involve with release oocycsts of Cryptosporidium parvum   to free environment.

·         Cryptosporidium parvum can be infected from injected animals to human.

·         Therefore Cryptosporidiosis is a zoonotic disease.

·         Life cycle:

•                     After infected to human, oocyst excysts in the small intestine. They do not penetrate through gut epithelium. They get nourishment just attaching to the brush layer. Therefore they do not enter to the blood circulation.
•                     Trophozites feed and multiply.
•                 Fertilization is taken place between trophozoiets and become zygotes.
•                          The zygote is also divided further by fission. 

•           After they come with food stream to the large intestine, it secrete cyct wall in                              order to face dry conditions. 
•           The cyst consists of sporozites called spores which are found as ova.
•           Therefore the cyst is defined as oocycst.                  
•          Oocyst which is released through fecal matter and found in the water, usually contain 4               sporozites.

      •          But oocysts which are found in the dry soil contain 8 sporozites.

Symptoms:

Diarrhea fever

Affected people who are more susceptible to become infected:   Cryptosporidiosis is capable of kill human which have less immunity.

            Elders

            Young children

                         AIDs patients

 Prevention:

      It’s better to avoid drink water where animals usually consume.