This page lists the academic and web-based sources that informed the Parasite Patient’s Guide. It is provided for those who wish to review the references used within the guide.
Web Resources:
AMBOSS: General Parasitology — A clinician’s summary of parasite groups, host roles, life cycles, and stage-based diagnostics.
CDC: About Parasites — Plain-language overview of what parasites are, main groups (protozoa, helminths, ectoparasites), typical transmission routes, and why species-level ID matters for diagnosis and control.
Cleveland Clinic: Parasitic Infections — Patient-friendly overview covering causes, symptoms (including fever, fatigue and gastrointestinal signs), transmission routes, diagnosis and testing, treatment options, prevention and recovery advice.
Encyclopaedia Britannica: Parasite life cycles — Clear outline of direct (single-host) vs indirect (multi-host) cycles; defines definitive and intermediate hosts, with examples (e.g., Plasmodium, filarial nematodes) and the role of vectors such as mosquitoes.
MSD Manuals (Consumer): Overview of Parasitic Infections — Short summary of main parasite groups, how they spread (mouth/skin, vectors), common symptoms, basics of diagnosis (stool, blood, imaging), treatment options, and simple prevention tips.
Frontiers in Parasitology: Global impact of parasitic infections and the importance of parasite control — 2025 review outlining human, animal and plant burdens; One Health and zoonotic risk; quantitative impact (e.g., malaria cases/deaths); and priorities for control including convenience, effectiveness against drug-resistant parasites, affordability and environmentally friendly measures. Includes sections on epidemiology, public health burden and areas for improvement.
CDC: What Causes Parasitic Diseases — Clear overview of transmission categories: animals (zoonotic), blood (including transfusion), food and water, and insects (vector-borne), with examples and simple prevention points.
GIDEON Blog: A Guide to Parasitic Infections and Parasites — Plain-language primer on what parasitic infections are, symptoms, diagnosis basics, common transmission routes (food/water, vectors, person-to-person), and prevention tips; links to further GIDEON resources.
FSIS (USDA): Parasites and Foodborne Illness — Consumer-friendly page on parasites linked to food and water, common sources, and key kitchen habits (safe cooking, clean handling, chilling) to reduce risk.
WHO: Food safety fact sheet — Global overview of foodborne risks, including parasitic infections (e.g., Taenia solium, Echinococcus), with emphasis on safe food handling, hygiene, and the worldwide burden of disease.
CDC Yellow Book: Post-Travel Parasitic Disease (including evaluation of eosinophilia) — Clinical approach for returning travellers: history and exposure review, incubation timelines, when eosinophilia should raise suspicion (≥500/µL thresholds), and a flow diagram with tables linking symptom patterns to likely parasites; includes testing pointers and CDC consultation links.
WHO: Soil-transmitted helminth infections (fact sheet) — Overview of intestinal worms (Ascaris, Trichuris, hookworm), routes of transmission, global burden (particularly in children), health consequences (anaemia, malnutrition, impaired growth), and WHO’s large-scale deworming strategies.
CDC: Children (Parasites) — Plain-English guidance for paediatric populations: common risks (childcare settings, head lice, scabies), water-borne infections (e.g., giardiasis, cryptosporidiosis), soil-transmitted helminths and other NTDs, plus prevention tips (hand-washing, footwear, bed nets, travel chemoprophylaxis as advised).
CDC: Women and Parasites (Basics) — Overview of women-specific risks and considerations, including pregnancy-related issues (e.g., toxoplasmosis, malaria), sexually transmitted parasitic infections (e.g., trichomoniasis), and practical prevention pointers.
Mayo Clinic: Toxoplasmosis — symptoms & causes — Plain guide covering key risks in pregnancy (congenital infection), common exposure routes (undercooked meat, contaminated soil/produce, cat faeces), typical symptoms, and simple prevention tips.
American Family Physician: Common Intestinal Parasites — Overview of pinworm, giardiasis, hookworm and amoebiasis; giardiasis section covers malabsorption and prolonged diarrhoea, diagnosis with stool O&P or antigen assays, treatment including metronidazole, and prevention via safe water and hand hygiene.
ScienceDirect Topics: Parasitosis — Concise summary hub outlining systemic and clinical features of parasitic infections, including gastrointestinal, neurological, respiratory, haematologic and radiologic findings; aggregates content from expert book chapters and articles.
CDC: Travellers (Parasites) — Risks and prevention for international travel: food- and water-borne protozoa/helminths (e.g., giardiasis, cryptosporidiosis), vector-borne infections (e.g., malaria, leishmaniasis), and practical steps such as arranging advice 4–6 weeks before departure, vaccines and prophylaxis where indicated, and links to CDC Travelers’ Health.
CDC: Diagnosis of Parasitic Diseases — Overview of common diagnostics: stool O&P (CDC recommends three or more specimens on separate days), endoscopy/colonoscopy if stool tests are negative, blood tests (serology and blood smear), and imaging (X-ray, MRI, CT) for organ lesions; highlights the value of travel history and notes CDC is a reference lab (specimens go via state labs).
MedlinePlus: Ova and Parasite Test — Patient guide explaining how the test works, when it’s used, and the role of timing and symptom correlation in stool testing for parasitic infections.
Testing.com: Ova and Parasite Exam — Patient-friendly guide explaining stool test purpose, collection, processing, interpretation of results, and when doctors may order repeat samples
CDC DPDx: Stool Specimens – Detection of Parasite Antigens — Practical lab guide to antigen detection (DFA, EIA, rapid tests) for intestinal parasites (e.g., Cryptosporidium, Giardia, Entamoeba histolytica); notes antigen tests using blood/serum are available for Plasmodium and Wuchereria bancrofti.
CDC DPDx: Serum/Plasma Specimens – Detection of Antibodies — Practical guide to serologic testing for parasite-specific antibodies, with notes on safety, specimen requirements/submission, test interpretation, and disease-specific caveats.
CDC DPDx: Stool Specimens – Molecular Diagnosis — Practical PCR guidance for intestinal parasites: suitable preservatives (e.g., TotalFix, Unifix, modified PVA, Ecofix), storage/shipping, DNA extraction links, targets run at CDC (e.g., Cyclospora, Entamoeba histolytica/dispar, microsporidia), and notes on conventional vs real-time PCR (SYBR Green vs TaqMan).
PubMed: Imaging as a (pre)clinical tool in parasitology — Review of imaging in parasitology across experimental and clinical settings (microscopy and radiological modalities), covering diagnosis, in-vivo tracking, and support for drug/vaccine work.
CDC: Parasites — Main landing page linking to the A–Z disease index, public-facing info (About, Causes, Diagnosis), pages for specific groups and for health professionals, plus DPDx diagnostic resources.
DrugBank: Antiprotozoal Agents — Classification, chemical classes, and mechanisms of drugs used to treat protozoal infections.
Mayo Clinic: Malaria — diagnosis & treatment — Plain guide to work-up (blood tests) and common treatments; lists ACTs for chloroquine-resistant malaria alongside options such as atovaquone–proguanil, quinine with doxycycline, and primaquine, with brief safety notes and when to seek urgent care.
CDC Malaria: Choosing a Drug to Prevent Malaria — Chemoprophylaxis guidance for travellers; drug options (atovaquone/proguanil, doxycycline, mefloquine, chloroquine, primaquine, tafenoquine), start/stop timing, contraindications, Yellow Book country advice, and the need for G6PD testing with primaquine/tafenoquine.
ScienceDirect: Parasitism and anaemia — Classic 1969 review outlining how helminth infections—particularly hookworm—drive iron-deficiency anaemia via chronic blood loss; context piece rather than a maternal-specific or supplementation study.
CDC/Strongyloides (HCP): Diagnosis & treatment of strongyloidiasis — Clinical guidance for health care providers: diagnosis notes (serial stool exams as gold standard), first-line treatment (ivermectin; albendazole as alternative), follow-up stool testing 2–4 weeks after therapy, and hyperinfection risks in immunosuppressed patients.
Unlimit Health: Nutrition and parasitic infections — Overview of how diet and nutrition relate to parasite prevention and recovery; notes malabsorption, anaemia and stunting, and the value of integrated approaches with deworming and WASH.
EBSCO Research Starters: Prevention of parasitic diseases — Plain-language prevention tips covering hygiene, safe food and water, vector avoidance, and safer sex; includes condition-specific pointers for head lice, malaria, giardiasis, toxoplasmosis, and trichomoniasis.
Healthline: 8 Parasites and Bacteria That Could Be Hiding in Your Foods — Consumer explainer covering E. coli, Giardia, tapeworms, Toxoplasma gondii, Ascaris, Cryptosporidium, fish flukes and pinworms; highlights risks from undercooked meat/raw fish, contaminated produce/water, and poor kitchen hygiene, with practical tips (thorough cooking, handwashing, avoiding cross-contamination).
Mayo Clinic: Trichinosis — symptoms & causes — Short explainer on risks from undercooked pork and wild game, typical symptom pattern, when to seek care, and simple kitchen prevention (safe cooking temperatures, freezing notes, and grinder hygiene).
Seafood Health Facts: Parasites in Seafood — Consumer guidance on common seafood parasites (e.g., Anisakis, Diphyllobothrium), risks from raw/undercooked products, and proven control methods like proper cooking and deep-freezing (e.g., -4°F [-20°C] for 7 days).
CDC: How to Prevent Trichinellosis — Practical prevention for trichinella from pork and wild game: cook meat to safe internal temperatures, use a food thermometer, don’t sample meat until fully cooked; curing/drying/smoking/microwaving alone isn’t reliable; freezing pork <6 inches thick for 20 days at 5°F (−15°C) kills worms, but freezing wild game may not; clean meat grinders thoroughly; don’t feed uncooked scraps to animals.
Health Vermont: Parasites in Drinking Water — Short guidance on common waterborne parasites, typical exposure routes, simple ways to make water safer at home, and when to seek testing or advice.
Dr Berg: Detox and Die-Off — Guide on the Jarisch–Herxheimer reaction, its timing, and strategies to ease symptoms during parasite die-off.
Wikipedia: Jarisch–Herxheimer Reaction — Background on the classical reaction observed during syphilis treatment, with broader relevance to pathogen die-off.
Frontiers in Veterinary Science: Parasites at the One Health Interface — Research Topic (collection) focused on parasite transmission at the human–animal–environment interface, highlighting cross-species dynamics, surveillance, and control within a One Health frame; includes an articles hub with published papers.
Royal Veterinary College: Vaccine development for livestock parasites — Press note on a recombinant vaccine candidate against the barber’s pole worm (Haemonchus contortus) in sheep, reporting reduced parasite establishment and egg shedding in animal studies; collaborative work with Vetmeduni Vienna, linked to 2025 publications.
PMC: Iron Deficiency and Parasitic Infections — This article reviews the relationship between helminth infections and iron-deficiency anaemia, with evidence supporting iron supplementation.
bioRxiv: Loss of vitamin C biosynthesis protects from a parasitic infection — Mouse work shows ascorbate-deficient (Gulo-/-) mice are protected from schistosomiasis pathology; Schistosoma mansoni require host ascorbate for egg production, suggesting vitamin C status can shape host–parasite dynamics.
Cleveland Clinic: Probiotics — Patient-friendly overview of uses, potential benefits and risks, common strains and food sources, plus practical notes on when to consider probiotics.
INRAE: Probiotic strain for a common intestinal infection — Press note on a Lactobacillus johnsonii strain showing anti-parasite activity in animal models, with findings reported in Gut Microbes; early-stage work that may inform future therapies.
Frontiers in Immunology: Parasite–Probiotic Interactions in the Gut — Pig model of helminth infection (Oesophagostomum dentatum): two probiotic mixes tested. They did not lower worm burden, but the Bacillus/Enterococcus mix dampened type-2 inflammatory gene up-regulation and shifted gut microbiota; some probiotic effects were muted by concurrent infection.
Casey, G.J., Sartori, D., Horton, S.E., Phuc, T.Q., Phu, L.B., Thach, D.T., Nhan, V.T., Hien, T.T., Tsuyuoka, R. and White, N.J., 2010. Long-term weekly iron-folic acid supplementation and regular de-worming is effective in significantly and sustainably reducing the prevalence of anaemia and soil-transmitted helminth infection: a community-based trial in women of reproductive age in Vietnam. PLoS ONE, 5(12):e†13750. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3012714/ [Accessed 16 Sept. 2025].
Kedir, S., et al., 2024. Impact of weekly iron-folic acid supplementation on schistosomiasis reinfection risk and haematologic recovery among adolescents: systematic review (Frontiers in Pediatrics). Frontiers in Pediatrics, Article 1366540. Available at: https://www.frontiersin.org/articles/10.3389/fped.2024.1366540/full [Accessed 16 Sept. 2025].
Astiazarán-García, H., López-Flores, M.E., Tamez-Girón, G., Barrios, F.A., Torres, J., Calderón de la Barca, A.M., & López-Grande, N.G., 2015. Crosstalk between zinc status and Giardia infection: implications for diarrhoea and immune responses. Nutrients, 7(6), pp.4438–4452. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4488794/ [Accessed 16 Sept. 2025].
Fançony, C., Soares, Â., Lavinha, J. & Brito, M., 2022. Zinc deficiency interacts with intestinal/urogenital parasites in the pathway to anaemia in preschool children, Bengo–Angola. Nutrients, 14(7), Article 1392. Available at: https://doi.org/10.3390/nu14071392 [Accessed 16 Sept. 2025].
Liu, E., Pimpin, L., Shulkin, M., Kranz, S., Duggan, C.P., Mozaffarian, D. & Fawzi, W.W., 2018. Effect of zinc supplementation on growth outcomes in children under 5 years of age: systematic review and meta-analysis. Nutrients, 10(3), Article 377. Available at: https://doi.org/10.3390/nu10030377 [Accessed 16 Sept. 2025].
Long, K.Z., Rosado, J.L., Montoya, Y., Solano, M. de L., Santos, J.I., Hertzmark, E., DuPont, H.L., Thompson-Bonilla, C., Lopez-Saucedo, C. and Caamaño, M.C., 2007. Effect of vitamin A and zinc supplementation on gastrointestinal parasitic infections among Mexican children. Pediatrics, 120(4), pp.e846–e855. Available at: https://pubmed.ncbi.nlm.nih.gov/17908741/ [Accessed 16 Sept. 2025].
Hall, J.A., Grainger, J.R., Spencer, S.P. and Belkaid, Y., 2012. The role of retinoic acid in tolerance and immunity. Parasites & Vectors, 5, p.286. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3485670/ [Accessed 16 Sept. 2025].
Shi, X., Wei, M., Xu, Z., Liu, Y., Zhang, M., Lv, L. and Wang, Q., 2021. Vitamin C inhibits blood-stage Plasmodium parasites via oxidative stress. Frontiers in Cell and Developmental Biology, 9:639944. Available at: https://www.frontiersin.org/articles/10.3389/fcell.2021.639944/full [Accessed 16 Sept. 2025].
Puente, V., Peralta, B., Brítez, P., Ríos, Q., Estrada, J., and Allely, C., 2018. Anti-parasitic effect of vitamin C alone and in combination with benznidazole against Trypanosoma cruzi. PLoS Neglected Tropical Diseases, 12(9):e0006764. Available at: https://journals.plos.org/plosntds/article?id=10.1371/journal.pntd.0006764 [Accessed 16 Sept. 2025].
Tabatabaie, F., Hosseini, S., Mortazavi, Y., Hosseini, Z., and Keshavarz, H., 2018. Evaluation of the effects of vitamins C and E, and minerals selenium and calcium on proliferation of Toxoplasma gondii tachyzoites. International Journal of Infectious Diseases, 72, pp.21-26. Available at: https://www.ijidonline.com/article/S1201-9712(18)34236-X/fulltext [Accessed 16 Sept. 2025].
Cusick, S.E., Opoka, R.O., Lund, T.C., John, C.C. and Polgreen, L.E., 2014. Vitamin D insufficiency is common in Ugandan children and is associated with severe malaria. PLoS ONE, 9(12), p.e113185. Available at: https://doi.org/10.1371/journal.pone.0113185 [Accessed 16 Sept. 2025].
Kalantari, N., Sepidarkish, M., Ghaffari, S. and Rostami-Mansoor, S., 2023. Does vitamin D reduce the mortality rate of Plasmodium infection? A systematic review and meta-analysis. Malaria Journal, 22, p.173. Available at: https://doi.org/10.1186/s12936-023-04612-4 [Accessed 16 Sept. 2025].
Yar, T.M., Kaya, Y., Karaman, Ü., Arıcı, Y.K., Düğeroğlu, H. and Karataş, A., 2023. The Association Between Vitamin D Levels and Intestinal Parasites. Comptes Rendus de l’Académie Bulgare des Sciences, 76(10), pp.1633-1642. Available at: https://doi.org/10.7546/CRABS.2023.10.18 [Accessed 16 Sept. 2025].
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Travers, M.-A., Florent, I., Kohl, L. and Grellier, P., 2011. Probiotics for the control of parasites: An overview. Journal of Parasitology Research, 2011, Article ID 610769. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3182331/ [Accessed 16 Sept. 2025].
Saracino, M.P., Vila, C.C., Baldi, P.C. and González Maglio, D.H., 2021. Searching for the one(s): Using Probiotics as Anthelmintic Treatments. Frontiers in Pharmacology, 12:714198. Available at: https://www.frontiersin.org/articles/10.3389/fphar.2021.714198/full [Accessed 16 Sept. 2025].
Mandal, S., Mondal, C., Lyndem, L.M., et al., 2024. Probiotics: an alternative anti-parasite therapy. Journal of Parasitic Diseases. Available at: https://doi.org/10.1007/s12639-024-01680-4 [Accessed 16 Sept. 2025].
Shea-Donohue, T., Qin, B. and Smith, A., 2017. Parasites, nutrition, immune responses and biology of metabolic tissues. Parasite Immunology, 39(5). Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5863236/ [Accessed 16 Sept. 2025].
Papier, K., Stein, A. and Gorman, T., 2014. Childhood malnutrition and parasitic helminth interactions: A systematic review. Clinical Infectious Diseases, 59(2), pp. 234-242. Available at: https://academic.oup.com/cid/article/59/2/234/2895324 [Accessed 16 Sept. 2025].
Zeise, K.D., Artis, D. and Sonnenburg, J.L., 2021. Interplay between Candida albicans and Lactic Acid Bacteria in the Gastrointestinal Tract: Modulation of Growth and Virulence. Frontiers in Cellular and Infection Microbiology, published as PMC8404691. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8404691/ [Accessed 16 Sept. 2025].
Cong, L., Xu, H., Zeng, X., Zhu, H., Li, Z., Li, Q., He, Y., Feng, Q., Zhang, Y. and Xue, X., 2023. Intestinal commensal bacteria and probiotics inhibit fungal colonization and immune dysregulation: Insights into bacterial-fungal interactions. Frontiers in Cellular and Infection Microbiology, 13:1187831. Available at: https://www.frontiersin.org/articles/10.3389/fcimb.2023.1187831/full [Accessed 16 Sept. 2025].
Grondin, J.A., Leung, J.M., Houlden, A., Steinbrecher, T., Mühlbauer, M., Maslowski, K.M., Norman, J.M., Molinaro, C.A., Müller, M., Gause, W.C., Suresh, M., Kastenmüller, W., Kidd, B.A. and Gordon, S.C., 2024. Interaction between intestinal parasites and the gut microbiota: implications for the intestinal immune response and host defence. Pathogens, 13(8), p.608. Available at: https://doi.org/10.3390/pathogens13080608 [Accessed 16 Sept. 2025].
Gaulke, C.A., Barton, C.L., Proefrock, A., Rieck, A., Al‐Rashidi, H.S., and Goodrich, J.K., 2019. A longitudinal assessment of host-microbe-parasite relationships: microbiome, parasite burden, and pathology in zebrafish infected with Pseudocapillaria tomentosa. Microbiome, 7: 141. Available at: https://doi.org/10.1186/s40168-019-0622-9 [Accessed 16 Sept. 2025].
Myhill, L.J., Stolzenbach, S., Mejer, H., et al., 2022. Parasite-Probiotic Interactions in the Gut: Bacillus sp. and Enterococcus faecium regulate type-2 inflammatory responses and modify the gut microbiota of pigs infected with Oesophagostomum dentatum. Frontiers in Immunology, 12:793260. Available at: https://www.frontiersin.org/articles/10.3389/fimmu.2021.793260/full [Accessed 16 Sept. 2025].
Pandey, H., Kumar, N., Singh, D., and Shukla, S., 2024. Helminths in alternative therapeutics of inflammatory bowel disease: interactions with gut microbiota, immune modulation, and therapeutic potential. Intestinal Research, 22(2), pp. 175-190. Available at: https://doi.org/10.5217/ir.2023.00023 [Accessed 16 Sept. 2025].