Hospital midwife inadvertently spreads whooping cough to up to 170 people

By Dr. Ananya Mandal, MDMay 10 2012

A Middlemore Hospital midwife could have infected up to 170 people with whooping cough. If passed onto babies or women in the last three months of pregnancy, the disease can lead to severe illness or even death. Whooping cough is a highly infectious disease caused by bacteria which is easily spread through coughing and sneezing, much like the common cold. Also known as pertussis, it is distinguishable by a “whooping” sound at the end of coughing attacks.

The Auckland Regional Public Health Service revealed last week 210 people in the region had confirmed or suspected they had caught the disease since the start of the year. The ARPHS said all mothers who may have been exposed to whooping cough while at the hospital have been contacted and have been given advice about symptoms and treatment. All lead maternity caregivers (LMCs), GPs and postnatal midwives of the women were given information on treatment of mothers and babies, and all LMCs across Auckland were also given advice.

They said anyone concerned that they or their baby may be affected should seek medical advice immediately. “We fully understand that these mothers may be concerned about the health of their newborn babies,” said clinical director Dr Julia Peters. “We encourage them to be vigilant for symptoms and to contact their GP immediately if they have any concerns.”

New Zealand experiences an outbreak of whopping cough every four to five years. The last epidemic occurred in 2004-2005, with a smaller outbreak in 2009-2010.

The Department of Health recommends that babies receive three vaccinations against pertussis by the age of 6 months. According to the recommendations, the vaccinations should be administered at 2 months, 4 months and 6 months. Repeated vaccinations are recommended between 15 and 18 months, again between 4 and 6 years of age, again in middle school, and again as a teen or adult. A booster is recommended for adults who have close contact with infants.

Department of Health epidemiologist Dr. Chad Smelser said a single dose of the vaccine doesn't promote immunity in most people, which is why a three-dose series is recommended in a child's first year of life.