The CDC has warned about an “endemic” of Chagas disease, and the media has picked it up with hysteria. Is that justified? Let’s put this in perspective.
Chagas is a parasitic infection caused by Trypanosoma cruzi; it’s more common in animals than people, but human cases do occur and can cause heart problems — and doctors can usually treat it successfully with anti-parasitic drugs.
Earlier this year The Lancet argued that the WHO should declare Chagas endemic in order to fast-track vaccine development. But why a vaccine when anti-parasite drugs already work? The LA Times claims people don’t know they’re sick until a heart attack or stroke. That’s not accurate — there are warning signs like fever, fatigue, swollen lymph nodes, or swelling near the eye.
Even more concerning, The Lancet admits a vaccine would be trialed in poor Latin American communities, including patients with existing heart inflammation — a condition that an immune-stimulating vaccine could make worse. In other words, the poorest and sickest people could be used to test an experimental product even though effective drugs already exist.
And remember: “endemic” doesn’t mean cases are surging. It simply means the disease is present at a steady baseline level in a region.
So why this sudden panic about Chagas disease — especially given that your vet wouldn’t even panic if they found it in your dog? They’d just treat it. Well… we don’t know why. Do you?
