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Thank you for your story about Hydra, I think, that is what I've got in my "baby" tank (I am breeding corridoras). Can they harm cherry shrimps? Snails? Copepods?Orlando Gonzalez says:
For me the blood worm allergy is real. Just the smell of the worms gives me asthma. I’m not going to feed them again. Not worth the health risk especially with so many other food alternatives.Matt Pedersen says:
Indeed Joe!Matt Pedersen says:
Jules, thanks for the great viewpoint. Did you take the survey? If not, please do. To your question about a control group, we didn't conduct a scientific experiment or study (which would have the appropriate experimental design, including a control group); e.g. we did not set out to determine whether there is or is not such a thing as a bloodworm allergy; that fact is already well established by other experiments, some of which I referenced here and in the other bloodworm article. We conducted a survey, which is simply the act of gathering input from a population; there is no "control group" in a survey. However, good survey design attempts to weed out people who are lying. Just as an example - someone who's never fed bloodworms yet reports that they have an allergy, there's potentially something wrong with that response. The survey responses had almost nothing in the way of responses that needed to be thrown out, and when I looked, throwing out the questionable responses didn't significantly change the numbers. You are absolutely correct - there are no doubt respondents who may have responded that they "do" have a bloodworm allergy but in fact do not. By the same token, however, there could also be those that don't realize that they have a bloodworm allergy, but they do. We didn't actually ask every survey respondent to go take an allergy test of course. But I find it very compelling that, comparing the data collected through our survey, with the data collected by researchers doing tests specifically for antigen sensitivity, the numbers are remarkably similar. That, to me, does suggest a certain level of validity to the responses provided by the survey participants. Of course, it could be completely coincidental too.Joe Reich says:
I just have a hard time accepting that only 47% of us hobbyists are completely immune to any symptoms. I've only ever heard of one case of an extreme medical emergency from my area. No one else has said that they were having any reactions/symptoms. I have to agree with jules a birnbaum about other health issues may be at issue here too. I don't think the survey asked all the right questions for a complete analysis of this issue, but I understand how Amazonas doesn't want to get too involved in peoples lives for medical reasons. After all, who wants to put out their medical history on the web! Clearly this is an open door for further research...