Is Nicaragua "Roundup-ready"?
I think the answer is no. That answer isn't unique to Nicaragua but it certainly has the right conditions to make glyphosate more of a problem than in some other places.
An article in MDPI, the International Journal of Environmental Research and Public Health, takes a serious look at glyphosate and kidney disease. Unlike many generic studies meaning ones that average results over the world, this one focused primarily on Sri Lanka.
Here is the abstract from the article.
The current chronic kidney disease epidemic, the major health issue in the rice paddy farming areas in Sri Lanka has been the subject of many scientific and political debates over the last decade. Although there is no agreement among scientists about the etiology of the disease, a majority of them has concluded that this is a toxic nephropathy.
None of the hypotheses put forward so far could explain coherently the totality of clinical, biochemical, histopathological findings, and the unique geographical distribution of the disease and its appearance in the mid-1990s. A strong association between the consumption of hard water and the occurrence of this special kidney disease has been observed, but the relationship has not been explained consistently. Here, we have hypothesized the association of using glyphosate, the most widely used herbicide in the disease endemic area and its unique metal chelating properties. The possible role played by glyphosate-metal complexes in this epidemic has not been given any serious consideration by investigators for the last two decades. Furthermore, it may explain similar kidney disease epidemics observed in Andra Pradesh (India) and Central America. Although glyphosate alone does not cause an epidemic of chronic kidney disease, it seems to have acquired the ability to destroy the renal tissues of thousands of farmers when it forms complexes with a localized geo environmental factor (hardness) and nephrotoxic metals.
The article explains how a combination of hard water, high temperatures and more along with glyphosate appears to be a deadly formula.