Delayed vaccines tied to whooping cough risk -
Study results published in JAMA Pediatrics suggest that children who are not vaccinated according to the schedule recommended by US health officials are at an increased risk of catching pertussis, as reported The Baltimore Sun.
Children who fell significantly behind on their diphtheria, tetanus and acellular pertussis (DTaP) vaccinations were between 19 and 28 times more likely to be diagnosed with the condition, the researchers found.
The study compared the vaccination records of 72 children, between the age of three and 36 months, who were diagnosed with pertussis between 2004 and 2010, and 288 similar children who did not get the disease.
About 47 percent of those diagnosed with pertussis were not vaccinated according to the Centers for Disease Control and Prevention recommended schedule, versus about 22 percent of children in the comparison group.
«Just over a third of the cases could have been prevented had they been vaccinated on time," noted lead author Jason Glanz.
Additionally, the study found that the longer parents delayed getting their children vaccinated, the higher the risks increased, with those who were three doses behind had 19 times the risk of pertussis, and children who were four doses behind had 28 times the risk.