 The babies of the mothers will be followed up at 1week,6 weeks,3,6,and 12 months of age. At each visit, mothers will answer standard ISSACallergy questionnaires, infant feeding patterns, hygiene practice and childs growth and development parameters: height and weight.At 12 months of age, skin prick testing will performed on the child. This method of detecting atopy is less invasive and gives faster results than measuring serum IgE levels. Our skin prick test protocol follows the routine panel used in NUHs Paediatric Allergy Clinic for under 3 years old viz. Dermatophagoides pteronyssinus dustmite, Blomia tropicalis dustmite, cat dander, egg white, soy protein, cows milk, histamine positive control and saline negative control. Size of wheal and or erythema when present will be recorded. 