RT Book, Section A1 García, Héctor H. A2 Kline, Mark W. SR Print(0) ID 1182904270 T1 Echinococcosis T2 Rudolph's Pediatrics, 23e YR 2018 FD 2018 PB McGraw-Hill Education PP New York, NY SN 9781259588594 LK accesspediatrics.mhmedical.com/content.aspx?aid=1182904270 RD 2024/04/19 AB Nine species of Echinococcus have been recognized to date: Echinococcus granulosus sensu stricto (G1 to G3), Echinococcus equinus (G4), Echinococcus ortleppi (G5), Echinococcus canadensis (G6 to G10), Echinococcus multilocularis, Echinococcus vogeli, Echinococcus oligarthrus, Echinococcus felidis, and Echinococcus shiquicus. All but E felidis and E shiquicus are able to infect humans with their larval stages. The definitive hosts are canids (eg, dogs, coyotes, wolves, dingoes, jackals), except for E oligarthrus, which has been isolated only in wild cats. Humans become accidental intermediate hosts when the eggs from the feces of dogs, wolves, or other canids are ingested.