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Since the emergence of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), the need for an effective vaccine has appeared crucial for stimulating immune system responses to produce humoral/cellular immunity and activate immunological memory. It has been demonstrated that SARS-CoV-2 variants escape neutralizing immunity elicited by previous infection and/or vaccination, leading to new infection waves and cases of reinfection. The study aims to gain into cases of reinfections, particularly infections and/or vaccination-induced protection.
View Article and Find Full Text PDFPrognosis after one- and two-stage revision surgery for periprosthetic joint infection: A systematic review and meta-analysis.
J Orthop Surg (Hong Kong)
January 2025
Sports Medicine Center, West China Hospital, Sichuan University, Chengdu, China.
Objective: Revision surgeries for periprosthetic joint infections (PJIs) in arthroplasty can follow either one- or two-stage treatment protocols. Previous studies have reported similar reinfection rates and reductions in complication rates for both treatment options. However, the literature on the selection of one protocol is still controversial.
View Article and Find Full Text PDFCOVID-19 Vaccine Booster Dose Fails to Enhance Antibody Response to Omicron Variant in Reinfected Healthcare Workers.
Viruses
January 2025
Department of Microbiology, Clínica Universidad de Navarra, 31008 Pamplona, Spain.
The emergence of new variants and diverse vaccination regimens have raised uncertainty about vaccine effectiveness against SARS-CoV-2. This study aims to investigate the impact of Omicron primo-/reinfection and primary vaccination schedules on the immunogenicity of an mRNA-based booster dose over a six-month period. We conducted a prospective cohort study to assess the durability and level of antibodies of 678 healthcare workers fully vaccinated against COVID-19.
View Article and Find Full Text PDFSurveillance Following Hepatitis B Surface Antigen Loss: An Issue Requiring Attention.
Pathogens
December 2024
Department and Institute of Infectious Disease, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, China.
Due to the lack of agents that directly target covalently closed circular DNA and integrated HBV DNA in hepatocytes, achieving a complete cure for chronic hepatitis B (CHB) remains challenging. The latest guidelines recommend (hepatitis B surface antigen) HBsAg loss as the ideal treatment target for improving liver function, histopathology, and long-term prognosis. However, even after HBsAg loss, hepatitis B virus can persist, with a risk of recurrence, reactivation, cirrhosis, and hepatocellular carcinoma.
View Article and Find Full Text PDFExtended Treatment Duration of Artemether-Lumefantrine in Ugandan Children with HIV on Efavirenz-Based Antiretroviral Therapy: A Randomized Controlled Pharmacokinetic and Pharmacodynamic Trial.
J Clin Pharmacol
January 2025
Infectious Disease Research Collaboration, Kampala, Uganda.
Malaria and HIV co-infection are prevalent in sub-Saharan Africa causing significant drug interactions with co-treatment. We previously reported a 30%-70% reduction in exposure to the standard 3-day (6-dose) artemether-lumefantrine (AL) treatment for malaria when given with efavirenz-based HIV therapy, impacting malaria reinfection risk. We conducted a prospective, randomized study comparing the 3-day regimen to an extended 5-day (10-dose) regimen with pharmacokinetic sampling for artemether, dihydroartemisinin, lumefantrine, and desbutyl-lumefantrine (DBL) over 42 days.
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