SP-A1, SP-A2 and SP-D gene polymorphisms in severe acute respiratory syncytial infection in Chilean infants

► In this work, polymorphisms of SP-A1, SP-A2 and SP-D genes, was performed in Chilean infants with RSV-ALRI. ► Infants- SNP comparison was done according to their clinical severity and with general population. ► This is a study of genetic susceptibility for RSV infection in South-American population. ► Differences found with other authors, indicates the need to identify local biomarkers of severity.