Rahul Parikh : Before vaccines , polio , measles , whooping cough , meningitis afflicted children . Parikh : Diseases virtually wiped out , but an anti-vaccine trend threatens to bring them back . Comment: Many parents began refusing to get their kids shots because of a growing anti-vaccination movement . As whooping cough cases mount in California , he says , it 's clear kids need shots .
Rahul Parikh : Before vaccines , polio , measles , whooping cough , meningitis afflicted children . Parikh : Diseases virtually wiped out , but an anti-vaccine trend threatens to bring them back . Comment: As whooping cough cases mount in California , he says , it 's clear kids need shots .