Worldwide, chronic hepatitis B and C infections remain a significant public health challenge, causing millions of cases of liver disease globally.
The objective of this article is to highlight the need for testing and monitoring hepatitis B and C virus infections using Real-Time PCR, as well as to analyze the implementation of strategies for the eradication of hepatitis in accordance with WHO targets for 2030.
This narrative review highlights the necessity, performance, advantages, limitations, and challenges of implementing Real-Time PCR testing in clinical practice and public health policies for hepatitis B and C.
The results show that Real-Time PCR has superior sensitivity and specificity in the early detection of active infection and monitoring of viral load, facilitating optimal therapeutic management. Serological testing retains its essential role in initial screening, identifying exposure to viruses. Vulnerable groups, including hemodialysis patients, people who inject drugs, HIV-positive patients, healthcare workers, and marginalized populations, have increased prevalence and require prioritization in testing. The main limitations reported include unequal access to PCR technology and potential technical errors. Proposed strategies for improving testing include expanding access to molecular techniques, awareness campaigns, standardization of protocols, and international collaborations to support screening and treatment.
The conclusions emphasize that integrating serological testing with Real-Time PCR and focusing on vulnerable groups are crucial for achieving the objectives.
Tag Archives: molecular diagnosis
Molecular characterization of Staphylococcus aureus nasal carriage among healthcare workers: Insights for infection control
The purpose of the study was to identify the nasal carriage of S. aureus in healthcare workers of the clinical wards of the Târgu-Mureș Emergency County Hospital and to characterize the bacterial isolates phenotypically and genotypically. This study included 64 medical staff from the Târgu-Mureș Emergency County Hospital. Their data and nasal exudates were collected. The multiplex PCR method was used to identify femA, PVL, mecA, eta, etb and tst genes. ERIC-PCR was used to evaluate the genetic similarity of the bacterial isolates. A prevalence of 25% of nasal carriage of S. aureus was obtained. Of these 12% were methicillin-resistant and 47% showed clindamycin-inducible resistance phenotype. Almost half of the isolates (47%) were from ICU (Intensive Care Unit) personnel. PCR results confirmed the species and the presence of the mecA gene in MRSA (Methicillin-Resistant Staphylococcus aureus) isolates. Except for 4 strains that showed the gene for exfoliatin A, no other virulence factor genes were detected. ERIC-PCR identified the partially common origin of the S. aureus strains, all having a similarity of 55%, with some reaching up to 100% similarity. Although the strains did not spread clonally and did not carry important virulence factors, there were associations between the nasal carriage and respiratory infections, previous diagnosis with S. aureus, Intensive Care Units and Nephrology wards.