Dr.K.Amala

  Giardiasis  (Giardia lamblia) It has “Smiley face" symbol. Found by (Lambl, 1859) Alexeieff, Kofoid & Christiansen, 1915. Causing giardiasis . First seen by Leeuwenhoek (1681) while examining his own stool Flagellated parasitic microorganism. Trophozoites are pear-shaped cells, 10 to 20 µm long, 7 to 10 µm across, and 2 to 4 µm thick. Motile by way of four pairs of flagella. Each G. lamblia cell has two nuclei. Parasite Stages Two stages of the parasite Cyst and trophozoite. Trophozoites When viewed flat, the shape of the trophozoites is like tennis or badminton racket. When viewed side it resembles a longitudinally split pear shape. The dorsal surface is convex and the ventral surface is concave with a sucking disc. The size of trophozoites 14 µm long and 7 µm broad. The anterior end is broad and the rounded and the posterior end tapers to a sharp point. It is bilaterally symmetrical and all the organs of the body are paired. Colonizes and reproduces in the small intesti...

  Amoebiasis ( Entamoeba histolytica )  It is a parasitic infection Caused by Entamoeba histolytica this This parasite causing diarrhea, dysentery and abscess in man Lambl (1859) first discovered the parasite, Loach (1875) proved its pathogenic nature, while Schaudinn (1903) differentiated pathogenic and non-pathogenic types of amoebae. First identified by doctor (F.Aleksandrovich- 1875) from st.petersburg. Affect the intestinal parts of host. Cased increased diarrohea, abdominal pain, flatulents, gas and increased body temperature. Enter through blood stream from intestine to other organs (liver, lungs, brain). It cause amoebic dysentry Non-pathogenic -   E. Coli, E. Hartmanni, E. Polecki, E. Nana,E. Lodamoeba . These amoebia were colonize as commensals in colon, helps to settle intestine mucosa.   It cause infection in immunocompromised persons - E. Polecki, E. Nana . Entamoeba histolytica Morphology Unicellular microorganisms. Their life divid...