O&G Vivas · Antenatal care — maternal immunisation
Vaccination in pregnancy — structured oral station (12 minutes)
FRANZCOG oral-format station on vaccination in pregnancy: candidate states the four recommended vaccines and their timing, the contraindicated live vaccines, counsels a vaccine-hesitant woman with the evidence, and manages a seronegative result and an inadvertent exposure. Scored against the eight published RANZCOG oral domains.
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Station format
4 minutes reading, 12 minutes examination, 20 marks, global scoring. The eight published RANZCOG oral domains apply to every station: history and examination; investigations and interpreting results; treatment and management; clinical knowledge; complex, urgent or unusual clinical presentations; rapport with patient, support person or colleague; respect; communication skills. You are being marked on how you behave, not only what you know. [4]
Reveal the examiner script and model responsesShowHide
Opening prompt — "She asks whether she really needs the injections. How do you respond?"
Model response — lead with rapport, then the four vaccines: [4]
- "I would thank her for raising it and acknowledge that it is a reasonable question to think through. I would not pressure her — I would explain what is recommended and why, and support her to decide."
- "There are four vaccines routinely recommended in pregnancy: influenza at any stage, pertussis around 20 to 32 weeks, COVID-19 per current guidance, and RSV around 28 to 36 weeks. Each protects both her and her baby — the antibodies she makes cross the placenta so her newborn is born already protected."[4]
- "I would offer the influenza vaccine today if she is agreeable, and plan the others for the right visit."
Probe 1 — "Why pertussis in particular? Is it not a childhood disease?"
- "Pertussis kills infants, and the deaths are concentrated in babies under three months — too young to have received their own vaccines. The maternal dose closes that gap. The Dabrera study found maternal pertussis vaccination was 93% effective in protecting infants under eight weeks."[2]
- "That is why it is given in every pregnancy — the antibody wanes between pregnancies, and each baby needs its own fresh protection."[4]
Probe 2 — "She has heard vaccines are unsafe in pregnancy. What do you say?"
This is a scored communication domain. Demonstrate it out loud: [4]
- "I would ask what specifically she has heard, and address it directly. The recommended vaccines in pregnancy are inactivated or recombinant — they cannot cause the infection. The live vaccines, like MMR and varicella, are genuinely not given in pregnancy, but the recommended ones are safe across all trimesters."[4]
- "I would share the evidence: the COVID-19 mRNA studies show vaccination is associated with fewer, not more, pregnancy complications. Influenza vaccination has been used in pregnancy for decades."[5]
- "I would offer her written information and time to decide, and record her decision either way."
Probe 3 — "Her booking serology comes back rubella IgG negative. What do you do?"
- "I would not give MMR during pregnancy — it is a live vaccine and contraindicated. The reflex error is to vaccinate; the correct action is to defer."[4]
- "I would plan MMR for the postpartum period, given before discharge. It is safe in breastfeeding. I would counsel her to avoid pregnancy for one month after the dose, and I would document the seronegative result and the plan."
- "Rubella matters because primary infection in early pregnancy causes congenital rubella syndrome — so the postpartum catch-up is essential, not optional."[4]
Probe 4 — "She also tells you her GP gave her the MMR vaccine two weeks ago, before she knew she was pregnant. She is very anxious."
- "I would reassure her. There is no documented link between inadvertent MMR in pregnancy and fetal harm, and termination is not recommended for the vaccine alone."[4]
- "I would document the exposure, continue routine antenatal care, and make sure she understands this does not change her pregnancy management. The anxiety is the main thing to address here — with empathy and the evidence."[4]
Probe 5 — "Summarise your approach to vaccination in this pregnancy."
- "Offer the four recommended vaccines at the right visits — influenza now, pertussis at 20 to 32 weeks, RSV at 28 to 36 weeks, COVID-19 per guidance. Defer MMR to postpartum given her seronegative status. Address her hesitancy with the evidence and the trusted-provider relationship. Document every vaccine given or declined, and report to the immunisation register."[4]
References5ShowHide
- [1]Zaman K, Roy E, Arifeen SE, et al. Effectiveness of maternal influenza immunization in mothers and infants N Engl J Med, 2008.PMID 18799552
- [2]Dabrera G, Amirthalingam G, Andrews N, et al. A case-control study to estimate the effectiveness of maternal pertussis vaccination in protecting newborn infants in England and Wales, 2012-2013 Clin Infect Dis, 2015.PMID 25332078
- [3]Kampmann B, Madhi SA, Munjal I, et al. Bivalent Prefusion F Vaccine in Pregnancy to Prevent RSV Illness in Infants N Engl J Med, 2023.PMID 37018474
- [4]American College of Obstetricians and Gynecologists ACOG Committee Opinion No. 741: Maternal Immunization Obstet Gynecol, 2018.PMID 29794683
- [5]Morgan JA, Biggio JR Jr, Martin JK, et al. Pregnancy Outcomes in Patients After Completion of the mRNA Coronavirus Disease 2019 (COVID-19) Vaccination Obstet Gynecol, 2023.PMID 36735413