<prompt> Low-bih weight baby is the one with bih weight is less than -1000 grams1500 grams2000 grams2500 grams  <response>: A low bih wright infant is any infant with a bih weight less than 2.5kg regardless of gestational age.REF.PARKS TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE.Editon-21.Page no.-494 