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Group B Streptococcus (GBS)

The Panther Fusion GBS assay joins the expanding molecular testing menu on the Panther Fusion system. This assay detects the gram-positive bacterium Streptococcus agalactiae (GBS) in pregnant women and so providers can prevent its transmission to their babies.1 GBS has serious long-term health consequences, including death, in newborns.

A Sensitive Assay for a Distinct Threat

This assay features world-class performance and sensitivity, answering a crucial need for GBS detection. GBS is a serious and sometimes fatal infection that is passed to infants during birth.14 GBS is a leading cause of early-onset neonatal sepsis in the United States, and it also can cause pneumonia and meningitis.2 Antibiotic prophylaxis can reduce transmission of GBS to babies when administered properly. The Panther Fusion GBS assay helps providers diagnose GBS in mothers so they can confidently determine if intrapartum prophylaxis is needed.

Intuitive Design for Real-World Need

The CDC states that accurate results are more important than rapid turnaround time for antenatal screening.2 When providers have diagnostic tools with excellent sensitivity and performance, they can deliver the highest level of care. The Panther Fusion GBS assay is a real-time PCR assay for antepartum testing with enriched vaginal and rectal swabs. It features dual-target detection of Cfb and SIP genes and 100% clinical sensitivity.1

True Flexibility and Full Automation

Run on the Panther Fusion system, this assay offers the benefits of Panther Fusion automation, high-throughput flexibility and ease of use, allowing for high-volume GBS testing in reference laboratories and hospitals. It may be processed, free from batching on the Panther Fusion system with other Aptima and Panther Fusion assays for women’s health, virology, respiratory and sexually transmitted infections.


1.Panther Fusion GBS assay [OUS package insert]. AW-17997, Rev. 003. San Diego, CA: Hologic, Inc.; 2019. 2. CDC. Prevention of Perinatal Group B Streptococcal Disease: Revised Guidelines from CDC, 2010. MMWR. 2010;59:RR-10.