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Hahnemann first used a homoeopathic potency of Belladonna, selected using the Law of Similars, to prevent Scarlet Fever in 1798. Since then homoeopathic immunisation, or homoeoprophylaxis, has been used by tens of thousands of homoeopaths. Results have been described in our literature, but there has been relatively little formal statistical analysis of results. Further, most interventions have been by individual practitioners with relatively few people. This paper provides a graphical description of the use of homoeoprophylaxis by a government’s medical institute to protect literally millions of people. This experience has the potential to change the way homoeoprophylaxis is viewed by parents, practitioners and governments around the world.
The use of homoeoprophylaxis (HP), or homoeopathic immunisation, has been debated in this journal. Some homoeopaths oppose it on philosophical grounds (see the debate between Professor Vithoulkas and Dr Golden), some on more technical/political grounds (see the views of Dr Fisher which have been contested by Dr Golden). However HP has considerable support internationally being, as it is, part of Hahnemann’s “classical” method based squarely on the Law of Similars, and first used by him in 1798.
Irrespective of conceptual issues, the principal question is whether HP is effective and safe. Both aspects have been thoroughly researched and the evidence published. The question of safety is relatively easy given the absence of toxic materials in potentised remedies; however the question of effectiveness and efficacy remains hotly contested by orthodox scientists. They say that homoeopathy in general is “implausible” because “nothing is there” and therefore both treatment and prevention cannot work irrespective of the evidence. Whilst this is a very unscientific response, it remains the responsibility of advocates of HP to show convincing evidence that it does work.
Due to the recent massive HP interventions in Cuba, we can now offer four main types of evidence to support the effectiveness of both short-term and long-term HP, being:
- The historical use of HP from Hahnemann in 1798 to the present day, widely evidenced throughout the homoeopathic literature, and used by many “masters” of homoeopathy
- Short-term use of HP in epidemic situations. One of the most thorough of such studies has been by Morinski and colleagues in 1998. A review of such research points to an effectiveness of around 90%.
- Long-term use of HP in non-epidemic situations. Golden showed an effectiveness of 90.4% in his research from 1986 to 2004.
- The massive and highly successful HP interventions in Cuba involving millions of people from 2007 to 2010.
It is this latter piece of evidence that we will now examine further.
Leptospirosis in Cuba
Leptospirosis is a zoonotic disease which is endemic in Cuba. It usually worsens during the hurricane and high rainfall seasons from October to December each year when the infection is spread via infected water, although rodent urine will also carry the disease.
The three eastern regions of Cuba, Las Tunas, Holguin and Granma (IR = Intervened Region) usually have a much greater incidence of the disease per head of population than the rest of the country (RC) as is clear from Figure 1 which shows the average weekly incidence of leptospirosis for 2003-2006 in IR (2.4 million people) and RC (8.8 million people), weighted per head of population figure for both regions (Average x population in Cuba/population in region).
Figure 1: Leptospirosis, IR and RC, 2003-2006 weekly average weighted per head of population
In both 2007 and 2008 the RC was hit by severe hurricanes. In 2007 the Cuban Government, through the Finlay Institute which manufactures most vaccines used in Cuba, decided to homeopathically immunise the bulk of the population in IR due to a severe spike in the incidence of the disease.
Figure 2 shows the Incidence of the disease in 2007, and the impact of the two-dose HP program which was conducted in Week 45. Once again a weighted per head of population figure is shown, which illustrates the impact of the intervention even more clearly.
2007 was already a worse than average year for residents of IR, and became dramatically so following the hurricanes. However the outbreak “broke” in IR in Week 47, 2 weeks following the HP intervention, although it continued in RC where there was no intervention.
Figure 2: Leptospirosis in IR and RC, 2007, weekly, weighted per head of population
A second two-dose round of HP was administered in 2008 to the residents of IR, this time using a higher potency of the remedy (200C in 2007, 10,000C in 2008 – 2 doses a week apart). Figure 3 shows that the disease remained contained in IR (once again, the most at risk region), but continued as expected in RC apart from a significant single incident in Week 42.
Figure 3: Leptospirosis in IR and RC, 2008, weekly, weighted per head of population
The impact of the HP intervention is clear from the above Figures, but was also demonstrated when comparing the actual progression of the disease in IR in 2007 with the expected number of cases derived using a predictive model based on rainfall experience over time, plus other factors. Figure 4 has been reproduced in other studies of the intervention,,.
Figure 4: Leptospirosis in 2007, actual and predicted incidence
One issue regarding this diagram was the reliability of the predictive model used. Further examination revealed that the model used was quite reliable in IR, but less so in RC.
One final examination of the leptospirosis data from 2004 to 2008 is presented in Figure 5, showing the incidence of the disease for both regions. It shows clearly the seasonal peaks and troughs over the years, with a breaking of the seasonal trend in IR in late 2007, and the substantial reduction of the disease in IR in 2008 despite IR remaining the region most at risk due to severe hurricanes in IR in 2008. It also shows the 2007 prediction for IR shown in Figure 4 (without the HP intervention factored in), but this time shown in monthly figures rather than weekly as in Figure 4.
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