Content continues after advertisement

Reconsidering Ancylostoma ceylanicum

Clinician's Brief (Capsule)


|November 2014

Sign in to Print/View PDF

Recent epidemiologic surveys have determined that Ancylostoma ceylanicum is the second most common hookworm species infecting humans in Asia. A ceylanicum was originally found in humans in such low numbers as not to cause clinical concern. However, where A ceylanicum is endemic in dogs and cats, its prevalence in humans is rising.

Experimental infection of human volunteers with A ceylanicum produced skin lesions in those infected cutaneously and abdominal symptoms (eg, GI discomfort, flatulence, diarrhea) in all who developed a patent infection. Natural infection is also under investigation; in some human patients, a single visualized and positively identified A ceylanicum worm was implicated as the cause of symptoms (eg, abdominal pain, nausea, poor appetite). As with other zoonoses and public health concerns, it is important to take a One Health approach to controlling A ceylanicum by combining chemotherapeutic interventions with improved sanitation. This is particularly important in communities where the parasite is endemic and humans live in close contact with dog and cat reservoirs (eg, Southeast Asia, Northern Australia, South Africa).


Although A ceylanicum is not endemic in North America, veterinarians should know important aspects of this parasite. Because of recent molecular diagnostic advances, we now know A ceylanicum is the second most common hookworm infecting humans in Asia. Human infections have been reported in almost all regions where A ceylanicum is known to infect dogs and cats. While anthelmintic therapy in humans has been endorsed, and likely controls morbidity, it most likely does not impact reinfection rates. Parasite populations vary from region to region; however, using proper treatment and preventive strategies for community dogs and cats has a positive impact on Ancylostoma spp infections in humans.—Chris Adolph, DVM, MS


Ancylostoma ceylanicum, a re-emerging but neglected parasitic zoonosis. Traub RJ. INT J PARASITOL 43:1009-1015, 2013.

This capsule is part of the One Health Initiative.

For global readers, a calculator to convert laboratory values, dosages, and other measurements to SI units can be found here.

All Clinician's Brief content is reviewed for accuracy at the time of publication. Previously published content may not reflect recent developments in research and practice.

Material from Clinician's Brief may not be reproduced, distributed, or used in whole or in part without prior permission of Educational Concepts, LLC. For questions or inquiries please contact us.


Clinician's Brief:
The Podcast
Listen as host Alyssa Watson, DVM, talks with the authors of your favorite Clinician’s Brief articles. Dig deeper and explore the conversations behind the content here.
Clinician's Brief provides relevant diagnostic and treatment information for small animal practitioners. It has been ranked the #1 most essential publication by small animal veterinarians for 9 years.*

*2007-2017 PERQ and Essential Media Studies

© 2023 Educational Concepts, L.L.C. dba Brief Media ™ All Rights Reserved. Terms & Conditions | DMCA Copyright | Privacy Policy | Acceptable Use Policy