IGF1 and infection: Growth failure is an important health problem, with weight-for-age z-score (WAZ) and length-for-age z-score (LAZ) declining during the golden period orgolden 1,000 days (period during pregnancy until second years of life),1 and insignificant growth thereafter.2 Nutritional intervention during this period will impact a child’s growth, development and ability to thrive.1 Infection in children causes growth failure by provoking a systemic immune response which affects the nutritional status,3 especially as a result of a reduction of insulin-like growth factor 1 (IGF-1).4