About

My approach

Professor Worm reading a book

Parasite information online tends to come in two flavors: cold and clinical, or scary and selling something. I'm neither. I'm the human-first middle — a resource built for everyday people, not just doctors or salespeople.

Editorially independent

No brand tells me what to write. I cite general medical consensus, not marketing claims — and when the honest answer is "there's no good evidence for that," I say so.

Most parasite stories end well

Pinworms clear with two doses of medicine, two weeks apart. Giardia is usually treated with a short prescription, though symptoms can linger for some people. Most toxoplasma infections never produce a single symptom, and the person never knows. That's the real clinical picture — common, treatable, usually over — and it's the one I write to, because it's the accurate one.

Doctor and vet first

Every symptom page points back to a real professional. I help you ask better questions and make informed decisions — I never replace the person who can actually test and treat.

About Nora Penn

A late-night search led me down a rabbit hole. Nothing was helpful — just confusing. No straight answers, so I wrote one.

I read the sources you can trust — the CDC, WHO, and Mayo Clinic — and say what they mean in normal words. No scaring you, no miracle cures. I'm a writer, not a health expert, so this is here to help you understand and know what to ask — not to replace a real professional. If I get something wrong, tell me.

— Nora Penn

On the name. Nora Penn is a pen name. I'm a writer and researcher, not a clinician — and I'd rather you judged this site on whether the sources hold up than on who I am. That's why every health claim here links to the source that backs it, right next to the claim. You shouldn't have to take my word for any of it.

How I work

Corrections

If something on this site is wrong, I want to know — tell me and I'll fix it.

Pages get revisited and rewritten as sources are re-checked, and when a correction changes what a page actually claims, the page is corrected rather than quietly left standing. Getting something wrong on a health site isn't a small thing, and pretending it didn't happen is worse than the error.

Meet your guide. That friendly, bespectacled worm you'll see around the site is here to make a nervous topic feel approachable. Serious about the facts, relaxed about the delivery.

Get the free field guide

Is It a Parasite? — four pages, plain English, from CDC and WHO sources. The red flags and a printable prevention checklist.