Lamblia is elementary cytozoon a microorganism of family Giardia lamblia (synonyms Giardia intestinalis and Giardia duodenalis, or Lamblia intestinalis). Lamblia exists in two separate morphological forms: cists (static form) and trofozoits (freely living form).
In alive organism cists get by an oral way. In a food path cists begin transformation in trofozoits, which begin to be divided and quickly colonized a mucous surface thin intestine. In organizm of the owner there is also return process - encystment or transformation trofozoits in cists. The Cists have no on a superficial membrane of sites of an attachment to a mucous environment, therefore practically at once leave in thick intestine and are deduced with faces. The complete cycle finishes release from the organizm ?-owner cists, which in external environment(Wednesday), including in water, remain viable long time. They steady to acids, alkalis, substances containing active chlorine, and completely only at boiling within not less than 20 minute.
Cists Lamblia (Gardia Lamblia Cyst) have the form and size 8-14 microns in length and 7-10 microns in width. Gardia is one of most widespread by the parasite animal, dangerous as well for the man. In last Giardia lamblia causes occurrence of illness - Lamblioz, accompanying degestive ????????????. In spite of the fact that cysts Lamblia are distributed basically through ground, Lamblioz remains to one of the basic illnesses connected to water. So, in USA from 502 cases of infections called the use of poor-quality water and fixed with 1980 for 1985, 52 % were called Giardia lamblia /16/.
By virtue of the above named reasons the sanitary norms of our state and American EPA (USEPA) provide complete absence of these microorganisms in drinking water. The absence in water cists Lamblia is the important parameter that water is cleared of a lot others elementary, such as ?????????? of a stage (oocists) Cryptosporidium, ????, and also ?????????????. All listed organizm have higher stability to ????????????-???, than ??????????? and ??????????????? ??????????? organizm (E.Coli) and consequently the absence in water last is not a guarantee ??????????-???????? of safety of water. Such indirect guarantee also is given by(with) absence in water cists of Lamblias.