# Two Cases of Q Fever in Pregnancy, including Management of the Newborn, Australia

**Authors:** Robyn Silcock, Robert Horvath, Su May Chew, Clare Nourse

PMC · DOI: 10.3201/eid3201.251048 · Emerging Infectious Diseases · 2026-01-01

## TL;DR

This paper presents two cases of Q fever in pregnant women in Australia, showing that healthy babies can be born and safely breastfed without evidence of infection.

## Contribution

The study contributes real-world evidence supporting the safety of breastfeeding in Q fever-positive pregnancies.

## Key findings

- Two infants born to mothers with Q fever in pregnancy were healthy and full-term.
- Neither infant showed signs of Q fever infection within the first year of life.
- Breastfeeding was safely encouraged in both cases without transmission of the infection.

## Abstract

Optimal management of the birthing parent with Q fever in pregnancy and of the infant has not been established. Coxiella burnetii expresses a tropism for the placenta; resulting infection can potentially lead to spontaneous abortion and fetal demise. Although evidence around preventing transmission and infection in the peripartum and postpartum period is lacking, reports of healthy babies born to mothers with acute or chronic Q fever in pregnancy are increasing. Historically, many clinicians have recommended against breastfeeding in this setting because of a theoretical risk for bacterial transmission through breastmilk. We discuss 2 women in Australia who had Q fever in pregnancy, focusing on the peripartum period and infant management. Breastfeeding was encouraged in both cases. Both infants were born healthy and at term and have demonstrated no serologic or clinical evidence of Q fever infection in the first year of life.

## Linked entities

- **Diseases:** Q fever (MONDO:0019186)

## Full-text entities

- **Diseases:** ND (MESH:C537849), intrauterine growth retardation (MESH:D005317), toxicity (MESH:D064420), hypoglycemia (MESH:D007003), infectious diseases (MESH:D003141), seroconversion (MESH:D006679), intrauterine fetal death (MESH:D005313), HIV (MESH:D015658), abortion (MESH:D000026), hemolytic anemia (MESH:D000743), jaundice (MESH:D007565), obstetric complication (MESH:D007744), discoloration (MESH:D014075), infected (MESH:D007239), maternal death (MESH:D063130), placental infections (MESH:D010922), inflammatory (MESH:D007249), sudden infant death syndrome (MESH:D013398), placental abscess (MESH:D000038), acute chorionitis (MESH:D000208), chorionic vasculitis (MESH:D014657), congenital anomalies (MESH:D000013), fevers (MESH:D005334), femur length shortening (MESH:C535850), Q Fever (MESH:D011778), premature delivery (MESH:C536271), necrosis (MESH:D009336), miscarriage (MESH:D000022), syndactyly (MESH:D013576), headaches (MESH:D006261), preterm delivery (MESH:D047928)
- **Chemicals:** tetracyclines (MESH:D013754), fludeoxyglucose-18 (-), Cotrimoxazole (MESH:D015662), Virkon S (MESH:C071517), pyrimethamine (MESH:D011739), clarithromycin (MESH:D017291), macrolide (MESH:D018942), folic acid (MESH:D005492), roxithromycin (MESH:D015575), Doxycycline (MESH:D004318), sulfadiazine (MESH:D013411)
- **Species:** Canis lupus familiaris (dog, subspecies) [taxon 9615], Bacteria Latreille et al. 1825 (Bacteria stick insect, genus) [taxon 629395], Cavia porcellus (domestic guinea pig, species) [taxon 10141], Zootoca vivipara (common lizard, species) [taxon 8524], Homo sapiens (human, species) [taxon 9606], Ovis aries (domestic sheep, species) [taxon 9940], Bos taurus (bovine, species) [taxon 9913], Coxiella burnetii (species) [taxon 777]

## Full text

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## References

48 references — full list in the complete paper: https://tomesphere.com/paper/PMC12870122/full.md

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Source: https://tomesphere.com/paper/PMC12870122