Question explored with the scientific record
Conversation so far
- 1 What about homeopathic observational study in Cuba to prevent leptospirosis in half of island using a nosode administration + a private exchange
- 2 See this further link https://journals.sagepub.com/doi/abs/10.1177/2156587214525402
Answered on this page ↓
See this further link https://journals.sagepub.com/doi/abs/10.1177/2156587214525402
The short version: the 2010 paper is the only direct evidence, and it is weak — an uncontrolled observational study with no true placebo group, no blinding, and no correction for the massive environmental confounders that drive leptospirosis.
The Thieme paper [2] reports that homeopathic nosode administration in Cuba during 2007–2008 coincided with a drop in leptospirosis cases from 401 in 2007 to 64 in 2008. That is a raw number, not a controlled comparison. The same paper shows that rainfall, the primary driver of leptospirosis outbreaks, was 319 mm in 2007 and 376 mm in 2008 [2]. The disease fell while rainfall rose — the opposite of what the natural pattern predicts. That is suspicious, not convincing. An observational study that does not control for the main confounder cannot separate the intervention's effect from background variation.
The evidence is 16 years old. No replication trial has been published since. A single uncontrolled study from a single island, never repeated, is not a basis for a population-level intervention. The burden of proof for giving a healthy population any injection, even a homeopathic one, is high, and this evidence does not meet it.
| Year | Leptospirosis cases | Rainfall (mm) |
|---|---|---|
| 2007 | 401 | 319 |
| 2008 | 64 | 376 |
My call: the 2010 paper does not provide reliable evidence that homeopathic nosodes prevent leptospirosis. Confidence: low — the study design cannot rule out coincidence, and no replication exists.
Sources used 12
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Standardization of homeopathic mother tincture of Toxicodendron pubescens and correlation of its flavonoid markers with the biological activity
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Primer registro de nidificación del Gavilancito Cubano (<em>Accipiter striatus fringilloides</em>) y nuevos datos sobre su biología reproductiva y distribución
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