- S.M. Furjanic, T. Johnston, T.L. Konopka and K.H. Baker. (1999) Fecal coliform, helminth ova and virus densities in lime stabilized and lime post-treated biosolids. PA. Water Quality Manager.
- J.P. Hegarty, Y.L. Ma, C.M. Lebo, T.L. Konopka, and K.H. Baker (1999) Waterborne transmission of Helicobacter pylori: Convergence of environmental and clinical observations. ASM 99th General Meeting. Session 241, Poster Q-319.
Helminth Ova: Typical fertilized egg with thick outer mammillated coat (60 x 45µm) |
Unfertilized eggs are elongated and larger in size (85 x 45µm). Note the thin shell, an irregular, mammillated outer layer and granular contents. |
Ascaris Lumbricoides eggs. |
![]() Fertile eggs may lack the mammillated layer and are called "decorticated" eggs. |
Photomicrographs from the Atlas of Medical Parisitology:
http://www.cdfound.to.it/HTML/atlas.htm