Hookworm: Characteristics, Life Cycle, Pathogenesis and Diagnosis
Hookworm species have a worldwide distribution, with two species known to infect humans: Ancylostoma duodenale and Necator americanus. They are the second most common helminthic infection reported in...
Hymenolepis nana: Life Cycle, Pathogenesis and Lab Diagnosis
Hymenolepis nana is one of the small intestinal cestodes infecting man. Hymenolepis refers to the thin membrane covering the egg (Greek hymen—membrane, lepis- covering) and nana to its small...
Stained fecal films are the single most productive means of stool examination for the detection of intestinal protozoan parasites and eggs of helminths. Because the refractive index of protozoan...
Taenia solium, also known as pork tapeworm, causes Taeniasis, an infection that is common amongst people eating raw or insufficiently cooked measly pork containing the cysticerci. It is prevalent...
Ascaris lumbricoides: Life cycle, Pathogenesis, Lab Diagnosis
Ascaris lumbricoides, commonly known as “roundworm” is the largest nematode parasitizing man. The adult worms are cylindrical, with a tapering anterior end. When freshly passed from the...
Naegleria fowleri: Characteristics, Life Cycle and Lab Diagnosis
Naegleria fowleri, commonly referred to as the “brain-eating amoeba,” is a small, free-living water and soil amebae capable of causing opportunistic infections in humans. It causes a rare but...
