Johns Hopkins ABX Guide
Paragonimus spp.
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MICROBIOLOGY
- Paragonimus spp. are Trematoda: Paragonimidae, a parasite known as the lung fluke.
- Over 50 species known worldwide.
- Most common species: P. westermani in Asia
- Other species: partial listing
- P. africanus (Africa)
- P. kellicotti (U.S., mostly Midwest)
- P. mexicanus (Central and South America)
- Other species: partial listing
Paragonimus Species | Distribution | Human Infection Described |
P. westermani | Japan, Korea, Taiwan, China, Vietnam, Thailand, Myanmar, Laos, Cambodia, Indonesia, Nepal, Pakistan, Papua New Guinea, Malaysia, Philippines, Sri Lanka, India | Japan, Korea, Taiwan, China, Thailand, Philippines, India |
P. heterotremus | India, Thailand, Vietnam, Laos, Myanmar, South of China | India, Thailand, Vietnam, Laos, South of China |
P. skrjabini/P.s. miyazakii | Japan, China, Thailand, Vietnam, India | Japan, China |
- The lifecycle includes freshwater snails that are infected by miracidia as intermediate hosts that develop, leave the snail and then enter a crab or crayfish, which then is infective for humans. Metacercariae embed into the duodenum and migrate through the abdomen to the lung where they then become adults [Fig 1].
-- To view the remaining sections of this topic, please log in or purchase a subscription --
MICROBIOLOGY
- Paragonimus spp. are Trematoda: Paragonimidae, a parasite known as the lung fluke.
- Over 50 species known worldwide.
- Most common species: P. westermani in Asia
- Other species: partial listing
- P. africanus (Africa)
- P. kellicotti (U.S., mostly Midwest)
- P. mexicanus (Central and South America)
- Other species: partial listing
Paragonimus Species | Distribution | Human Infection Described |
P. westermani | Japan, Korea, Taiwan, China, Vietnam, Thailand, Myanmar, Laos, Cambodia, Indonesia, Nepal, Pakistan, Papua New Guinea, Malaysia, Philippines, Sri Lanka, India | Japan, Korea, Taiwan, China, Thailand, Philippines, India |
P. heterotremus | India, Thailand, Vietnam, Laos, Myanmar, South of China | India, Thailand, Vietnam, Laos, South of China |
P. skrjabini/P.s. miyazakii | Japan, China, Thailand, Vietnam, India | Japan, China |
- The lifecycle includes freshwater snails that are infected by miracidia as intermediate hosts that develop, leave the snail and then enter a crab or crayfish, which then is infective for humans. Metacercariae embed into the duodenum and migrate through the abdomen to the lung where they then become adults [Fig 1].
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