<Tr> <Th> Symptoms </Th> <Td> Death of a child less than one year of age </Td> </Tr> <Tr> <Th> Usual onset </Th> <Td> Sudden </Td> </Tr> <Tr> <Th> Causes </Th> <Td> Unknown </Td> </Tr> <Tr> <Th> Risk factors </Th> <Td> Sleeping on the stomach or side, overheating, exposure to tobacco smoke, bed sharing </Td> </Tr>

What causes sudden infant death syndrome also called sids