Glaxo tested its vaccine on children from poor and middle-income families in Latin America , while Merck 's trial was conducted largely in wealthy countries , including the United States and Finland , though it included children in Jamaica and Mexico .
Latin America /location/location/contains Mexico
NNP VBD PRP$ NN IN NNS IN JJ CC JJ NNS IN NNP NNP , IN NNP POS NN VBD VBN RB IN JJ NNS , VBG DT NNP NNPS CC NNP , IN PRP VBD NNS IN NNP CC NNP .
Latin America
LOCATION
Mexico
LOCATION
/location/location/contains