1 Coelomate animals or Coelomata (also known as eucoelomates â true coelom) have a fluid filled body cavity called a coelom /ËsiËlÉm/ with a complete lining called peritoneum derived from mesoderm (one of the three primary tissue layers).n some protostomes, the embryonic blastocoele persists as a body cavity. These protostomes have a fluid filled main body cavity unlined or partially lined with tissue derived from mesoderm.
Polio is a viral disease which may affect the spinal cord causing muscle weakness and paralysis. The polio virus enters the body through the mouth, usually from hands contaminated with the stool of an infected person.
When a person is infected with poliovirus, the virus resides in the intestinal tract and mucus in the nose and throat. Poliovirus transmission most often occurs through contact with stool of this infected person (known as fecal-oral transmission).Less frequently, polio transmission can occur through contact with infected respiratory secretions or saliva (oral-oral transmission). Poliovirus is commonly found in sewage water. 2  Touching surfaces or objects contaminated with poliovirus (for instance, by changing diapers), then putting the contaminated hand in the mouth. 3  Sharing foods or eating utensils with someone infected with poliovirus.