..to come to a position/level of infecting others.

İnsanlar = people

kan = blood
salgı = secretion

bünye = body(system)

bulundurmak = to keep/have/carry

hastalık = sickness/disease

başkalarına = to the others

bulaştırmak = to infect

konum = position/situation

gelmek = come/become

So it means that people who already carry the infected blood and secretion in their system become a threat to others.

Hope this helped.

(konuma gelmek) bu fiil anlamı nedir