Parasites Without Borders - Introduction
Parasites Without Borders

A comprehensive, advanced and free educational resource on all aspects of parasitic diseases and their impact on humanity around the globe.

Weekly Clinical Updates

As infectious diseases such as SARS, Monkeypox, Polio, HIV, and Ebola travel the globe and garner media attention, Parasites Without Borders staff are curating resources in a timely, ongoing basis.

Parasites Without Borders - Introduction - copy
Parasites Without Borders

A comprehensive, advanced and free educational resource on all aspects of parasitic diseases and their impact on humanity around the globe.

Parasites Without Borders - Knowledge is Power
Knowledge is Power

What can one do to help eliminate human suffering due to parasitic infections? For us, the answer was easy: More and better education for those in a position to apply medical knowledge directly to the people and places that need it most.

Parasites Without Borders - Join Us
Join Our Mission

Help bring the latest medical and basic biological information pertaining to diseases caused by eukaryotic parasites to every practicing physician and medical student within the United States.

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GET INVOLVED!

Parasites Without Borders disseminates FREE educational resources to those applying the medical knowledge to populations most in need.

Join the Parasites Without Borders online network and be part of the movement to spread life-saving medical knowledge around the world.

Throughout November, December and January, donations made to Parasites Without Borders (PWB) will be matched by the organization and donated to MicrobeTV

Throughout November, December and January, donations made to Parasites Without Borders (PWB) will be matched by the organization and donated to MicrobeTV with a minimum pledged donation of $10,000 and a total gift of up to $20,000. MicrobeTV is an independent podcast network for people who are interested in the life sciences. The shows are free and focus on viruses, bacteria, parasites, evolution, immunology and neuroscience.

Founded in 2015 by Vincent Racaniello, a professor of Microbiology and Immunology at Columbia University, MicrobeTV continues to create accessible life science-based podcasts in line with the mission of providing free science education to everyone. Now more than ever, people in our world need access to accurate science so they’re able to identify disinformation. Learn more at www.microbe.tv

Authoritative Learning Materials

For Educators

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    Books

    Our books are required reading for physicians planning to practice abroad, helping them gain a better understanding of the common infections they will likely be seeing and treating.

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    Certification Exams

    Having a team of physicians who are certified in caring for parasitic infections will better serve the safety and overall success of your organization's missions abroad. Learn more about our certifications.

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    Video Courses

    Parasitic Diseases Lectures is a 45-part video series that explores the biology and pathogenesis of protozoan and helminth parasites. The Medical Handbook for Limited Resource Settings is also a comprehensive e-learning video course that can be accessed here on our website.

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    Tropical Medicine Curriculum

    Deepen your understanding of parasitic and tropical diseases with our self study course. Break down geographical barriers to tropical medicine education.

Scientist with microscope
The Problem

Common Parasitic Infections

As our world gets smaller, parasites loom larger. With a growing population, rapid climate change, economic inequality and social unrest, we're seeing a perfect breeding ground for parasites. With our resources, we can defend our world from needless suffering.

Anopheles

Malaria

Globally in 2023, there were an estimated 263 million malaria cases and 597,000 malaria deaths in 83 countries.

Trypanosoma gambiense blood smear

African
Trypanosomiasis

Sustained control efforts have reduced the number of new cases by 97% in the last 20 years, with under 1,000 cases in 2022 (compared to 300,000 cases in 1995). For the period 2016–2020, the population at risk was 55 million people, with only 3 million at moderate-high risk. The WHO Neglected Tropical Diseases Roadmap is targeting 2030 as the interruption of transmission (zero cases).

Trypanosoma cruzi parasite which causes Chagas disease

American
Trypanosomiasis

More than 7 million people worldwide, mostly in Latin America, are estimated to be infected with Trypansosoma cruzi, the parasite that causes Chagas disease.

Promastigotes of Leishmania parasite which cause leishmaniasis

Leishmaniasis

The leishmaniases are a group of diseases caused by protozoan parasites from more than 20 Leishmania species. These parasites are transmitted to humans by the bites of the infected female phlebotomine sandfly. An estimated 700,000 to 1 million new cases occur annually.

3d rendered medically accurate illustration of a schistosoma

Schistosomiasis

Estimates show that at least 251.4 million people required preventive treatment for schistosomiasis in 2021, out of which more than 75.3 million were reported to have been treated.

Ascariasis is a disease caused by the parasitic roundworm Ascaris lumbricoides

Ascariasis

Ascaris infection due to A. lumbricoides occurs worldwide; an estimated 772–892 million people globally are infected.

Parasitic hookworm Ancylosoma duodenale in human duodenum

Hookworm

Hookworm is an intestinal parasite most commonly found in tropical and subtropical climates worldwide, particularly in Africa, South East Asia, the Western Pacific, Latin America and the Mediterranean. They infect roughly 406 – 480 million people globally.

Egg of parasitic roundworm Trichuris trichiura

Trichuriasis

The whipworm parasite, Trichuris trichiura, is a soil-transmitted helminth. Globally, whipworms infect an estimated 429 – 508 million people.

Our Team

Our team has had a lifetime of experience in teaching parasitic diseases to students of medicine, both within the U.S. and abroad. Our goal is to eliminate human suffering due to parasitic infections, and in order to do so, it is essential that there is more -- and better -- education for those in a position to apply medical knowledge to populations most in need. Our resources provide solutions to help alleviate the burden of parasitic diseases.

Daniel Griffin, MD

Daniel Griffin, MD, PhD

President, Parasites Without Borders; Chief of the Division of Infectious Disease, ProHEALTH, an OPTUM Company; Senior Fellow for Infectious Disease, UHG Research and Development; Clinical Instructor of Medicine, Columbia University College of Physicians and Surgeons; Department of Medicine, Division of Infectious Diseases
Dickson Despommier

Dickson D. Despommier, PhD

The late Emeritus Professor had appointments in Department of Environmental Health Sciences, School of Public Health and Department of Microbiology, Graduate School of Arts and Sciences (Columbia University 1971-2025)
Charles Knirsch

Charles A. Knirsch, MD, MPH

Co-Founder, Director, Parasites Without Borders; Chief Development Officer of Infectious Diseases; Head of Specialty Clinical Research and Development; and Medical Lead Emerging Markets, Global Access Programs.
Peter Hotez

Peter J. Hotez MD PhD FAAP FASTMH

Dean of the National School of Tropical Medicine and Professor of Pediatrics and Molecular Virology & Microbiology at Baylor College of Medicine; Endowed Chair of Tropical Pediatrics and Co-Director of the Texas Children’s Center for Vaccine Development (CVD) at Texas Children’s Hospital
Vincent Racaniello

Vincent Racaniello, Ph.D.

Higgins Professor of Microbiology & Immunology in the College of Physicians and Surgeons at Columbia University

Learn more about parasitic diseases and receive updates about Parasites Without Borders' initiatives and developments by subscribing to our newsletter.

Parasites Without Borders

A comprehensive educational resource on all aspects of parasitic diseases and their impact on humanity around the globe.

Donate to Parasites Without Borders Today!

Help bring the latest medical and basic biological information pertaining to diseases caused by eukaryotic parasites to every practicing physician and medical student within the United States.

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