Mums main source of infants' pertussis

Vaccinating mothers is likely to offer the best bang for the health buck in "cocooning" babies from whooping cough, research finds.

In a review of prior studies, NSW researchers concluded infants under six months who were hospitalised with pertussis were more likely to have contracted it from their mothers than anyone else.

Overall, 39% of infants caught pertussis from their mother and 16% from their father. Only 5% of infants were infected by doting grandparents. In up to half of