%0 Journal Article %K Europe %K History, Medieval %K Humans %K Immunity %K leprosy %K Plague %B International journal of leprosy and other mycobacterial diseases : official organ of the International Leprosy Association %D 1987 %G eng %L ELL 1987 %N 2 %P 345-50 %T Plague and leprosy in the Middle Ages: a paradoxical cross-immunity? %U http://ila.ilsl.br/pdfs/v55n2a15.pdf %V 55 %1 http://www.ncbi.nlm.nih.gov/pubmed/3298480?dopt=Abstract %8 1987 Jun