I don't think this article has been posted yet, but I think it explains a lot about what is happening in the US today and why we are seeing so many parasites which were never seen here before:
PLoS Neglected Tropical Diseases: Neglected Infections of Poverty in the United States of America
One paragraph in this article discussing migrant workers could explain a lot about what could be happening to the food supply in the US:
"Neglected infections among migrant farm workers.
Approximately 95% of the several million migrant agricultural workers in the US were born in Mexico, and almost all of them live below the poverty line [92]. They have significant health disparities, with case fatality rates more than five times the US average. In addition to very high rates of HIV, tuberculosis, and chronic diseases [92], [125]–[127], the Mexican-born migrant workers living in the US often suffer from high rates of parasitic infection, including ascariasis and hookworm infection [92], [128]–[130] (for which there is evidence of autochthonous transmission on US farms [131]), cysticercosis and Chagas disease [127],[131], and other neglected infections [92],[125]."
Thanks to today's liberal immigration policies which allow sick people to enter the US (unheard of in past migrations where immigrants were not allowed entry if sick) we can probably look forward to Chagas disease, Leprosy (reintroduced after eradication in US), tuberculosis (reintroduced in virulent antibiotic resistant forms), Malaria, Dengue fever, Cysticercosis, Leishmania mexicana (some residents of South Texas are getting this with no travel history) and Schistosomiasis as well as other difficult to treat parasites and diseases becoming permanent US parasitic and disease infections. There is a lot of important information in this article. Maybe it should be copied and brought in to all doctors so that they can see there is no way to escape parasites in today's world, where somehow the most basic ideas of disease/parasite prevention seem to have gone by the board. It makes me wonder too if Morgellons parasites could be a tropical parasitic infestation of the blood and lymph previously unknown in Western nations.