#metagonimiasis
Metagonimiasis | Metagonimus yokogawai | Structure, life cycle, symptoms | Bio science

Adults release fully embryonated eggs each with a fully-developed miracidium, and eggs are passed in the host’s feces The number 1. After ingestion by a suitable snail (first intermediate host), the eggs hatch and release miracidia which penetrate the snail’s intestine The number 2. Snails of the genus Semisulcospira are the most frequent intermediate host for Metagonimus yokogawai. The miracidia undergo several developmental stages in the snail, i.e. sporocysts The number 2a, rediae The number 2b, and cercariae The number 2c. Many cercariae are produced from each redia. The cercariae are released from the snail The number 3 and encyst as metacercariae in the tissues of a suitable fresh/brackish water fish (second intermediate host) The number 4. The definitive host becomes infected by ingesting undercooked or salted fish containing metacercariae The number 5. After ingestion, the metacercariae excyst, attach to the mucosa of the small intestine The number 6 and mature into adults (measuring 1.0 mm to 2.5 mm by 0.4 mm to 0.75 mm) The number 7. In addition to humans, fish-eating mammals (e.g., cats and dogs) and birds can also be infected by M. yokogawai

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Metagonimiasis
Metagonimus yokogawai
Parasitic diseases
Intestinal fluke
Liver flukes
Contaminated food
Contaminated water
snail life cycle
intermediate bipc
entamoeba histolytica
life cycle
parasitic diseases
bio science
metagonimus yokogawai
metagonimus yokogawai life cycle
metagonimus yokogawai symptoms