Echinococcosis (Hydatid Disease)

Echinococcosis in Tibetan Populations, Western Sichuan Province, China

“…Survey results indicated that human echinococcosis is a serious public health problem for the inhabitants of this area, for whom a 12.9% overall prevalence was recorded. In comparison with reports on human echinococcosis in other areas, including other areas of China, the prevalence in northwest Sichuan Province was much higher for both CE and AE ( 1 , 3 , 12 , 13 ). The prevalence of CE was higher than in other recognized echinococcosis-endemic areas of the world, including North Africa, South America, Russia, and the Middle East (1,12,14,15).…”

“…The most striking observation, however, was that both AE and CE were co-endemic in this area of Sichuan, with a prevalence of 6.8% for CE and 6.2% for AE. Only parts of Turkey, Central Asia, and Siberia have been identified as co-endemic for both human CE and AE ( 1 , 14 ). …”

“…Human cystic echinococcosis (CE), caused by infection with the larval stage of Echinococcus granulosus , and alveolar echinococcosis (AE), caused by infection with the larval stage of E. multilocularis , are 2 of the most pathogenic zoonotic parasitic helminthic infections of humans in the Northern Hemisphere ( 1 ). Human CE occurs worldwide in association with herding, within which the main dog-sheep cycle for E. granulosus is transmitted ( 1 ).…”

“…Human CE occurs worldwide in association with herding, within which the main dog-sheep cycle for E. granulosus is transmitted ( 1 ). Human AE is a much rarer parasitic infection; transmission occurs in several regions of the Northern Hemisphere, including the United States, Europe, Central Asia, Siberia, Japan, and China ( 2 ).…”

Fine‐needle aspiration diagnosis of primary hydatid disease of the thyroid; first reported case in the USA

“…It is prevalent in most sheep and cattle rearing regions of the world and few small foci in the USA. Humans are considered to be the intermediate and final hosts in the echinococcal life cycle . Larvae of four different echinococcal species: E. multilocularis, E. granulosus, E. vogeli , and E .…”