Which diagnostic technique is supportive but not definitive for Campylobacter detection?

Which diagnostic technique is supportive but not definitive for Campylobacter detection?

• A. PCR
• B. Fecal culture
• C. Cytology
• D. Serology

Answer: (C)

Cytology in fecal samples can give quick, supportive clues about a Campylobacter infection by showing curved Gram-negative rods or inflammatory changes that fit with enteric infection. However, it cannot confirm Campylobacter because other bacteria can look similar, and it doesn’t prove the organism is viable or provide species-level identification. This is why cytology is useful for raising suspicion and guiding further testing, but it isn’t definitive. Definitive detection relies on culture on selective media or molecular methods like PCR that specifically identify Campylobacter species. Serology may indicate exposure but isn’t reliable for diagnosing current infection.

Cytology in fecal samples can give quick, supportive clues about a Campylobacter infection by showing curved Gram-negative rods or inflammatory changes that fit with enteric infection. However, it cannot confirm Campylobacter because other bacteria can look similar, and it doesn’t prove the organism is viable or provide species-level identification. This is why cytology is useful for raising suspicion and guiding further testing, but it isn’t definitive. Definitive detection relies on culture on selective media or molecular methods like PCR that specifically identify Campylobacter species. Serology may indicate exposure but isn’t reliable for diagnosing current infection.