Palabras claves: Cytokine profile, environment, HYGIENE, Rural, Tropical Latin America, urban
Autores: Amorim L.D.A.F., Esquivel R., Fernanda Tupiza, Figueiredo C.A.V., Maritza G. Vaca, Martha E. Chico, Mauricio L. Barreto, Philip John Cooper, Silvia Erazo, Yisela Oviedo