Dwarf Tapeworm
Dwarf tapeworm (Hymenolepis nana) - a flat, ribbon-like cestode measuring 15-30 mm in length - is the causative agent of hymenolepiasis, a prolonged helminthic disease characterized by diarrhea, constipation, abdominal pain, decreased appetite, weight loss, headaches, insomnia and elevated body temperature. In the external aquatic environment, the parasite is represented by eggs in the form of oval-shaped structures measuring 40 x 50 micrometers with long filamentous appendages at the poles. In water, the eggs retain infectivity for several days. The infectious dose is 3-5 eggs
Source: "SANITARY-PARASITOLOGICAL ASSESSMENT OF THE EFFICACY OF WATER DISINFECTION USING ULTRAVIOLET RADIATION. METHODOLOGICAL GUIDELINES. MU 3.2.1757-03"
(approved by the Chief State Sanitary Doctor of Russia on September 28, 2003)
Морфология
Род
Понятие «цепень карликовый» мужского рода.
Склонение и число
| Падеж | Единственное число | Множественное число |
|---|---|---|
| Р | цепня карликового | цепней карликовых |
| Д | цепню карликовому | цепням карликовым |
| В | цепня карликового | цепней карликовых |
| Т | цепнем карликовым | цепнями карликовыми |
| П | цепне карликовом | цепнях карликовых |