A recent paper on the bias of farming studies did not discuss a healthy worker effect although this is being a reasonable or even the most likely explanation.
So let’s have a more detailed look at farm parents. It can be drilled down to the question if parents are also “protected” or it is more likely that some affected parents just moved away. Here are 13 studies that included information about farm parents. Continue reading Parental allergy history at farms
During my recent trip to London, I could get a brief glimpse into the 1932 book “Vitamin D” by Reed, Struck and Steck. As this volume is not available in a German library and as it was not allowed by the British library to travel, I took now the lengthy procedures of registering, waiting in the queue, before searching this book for any allergy related items.
It seemed to be worthwile, although with some unexpected results: Continue reading More retro vitamin D