-The beef tapeworm of humans
-The eggs of different species in the
family Taenidae are all morphologically the same.
-The worm has four circular suckers on its scolex (head).
-Cattle, sheep, goats, lamas
-The intermediate host ingests the parasite egg in
-The egg hatches in the intermediate host into a hexicanth larva.
-It penetrates the hosts small intestine.
-The larvae penetrate and are carried by the circulatory system to muscles.
-It then forms a cycticercus in the
-It will be infective in the intermediate host in 2-3 months.
-Humans become infected when they eat infected undercooked meat.
-The adult worm resides in the small intestine of the human host.
-Gravid proglottids (segments filled with eggs) break off the worm and travel out with the
feces, or the worm may crawl out.
-When outside the body, the proglottids burst open and release all the eggs, which are
then able to get into the feed of the intermediate host.
-Look for eggs or proglottids in the feces.
-Identifies the Taenidae in general.
-Identify species by scolex.
-Niclosamide for humans
-Praziquantel for cattle
-Freeze meat for 10 days before use.
-Cook meat adequately.
-Control the contamination of the cattle feed by keeping sanitary conditions and educate.