Publications by authors named "Aida Peiro-Mestres"
A monkeypox (MPX) outbreak has expanded worldwide since May 2022. We tested 147 clinical samples collected at different time points from 12 patients by real-time PCR. MPX DNA was detected in saliva from all cases, sometimes with high viral loads.
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- Diagnosing SARS-CoV-2 has been challenging, and while RT-PCR is the standard method, there's a need for faster and simpler tests for early case identification.
- This study assessed the performance of six commercial rapid antigen tests using 130 nasopharyngeal swab samples previously tested by RT-PCR, showing sensitivities between 65% and 79% and perfect specificity.
- Key findings indicated that sensitivity was higher for samples from patients with lower RT-PCR cycle threshold values and during the first week of symptoms, with the Siemens test proving most effective for high viral loads, highlighting the importance of rapid testing in managing COVID-19.
Dengue is the most significant arbovirus worldwide and a public health threat to non-endemic areas in which vectors are present. Autochthonous dengue transmission has been reported in several European countries in the last decade. Infected travelers from endemic regions arriving to areas colonized by in Europe need to be monitored in surveillance and control programs.
View Article and Find Full Text PDFBackground: Dengue virus (DENV) is the most important arbovirus worldwide, causing infections in endemic countries and returning travellers from these areas. Rapid diagnostic tests are needed to improve patient management and monitor local transmission. The detection of DENV non-structural protein 1 (NS1) is a useful tool for the diagnosis, but the currently available methods can be time consuming or lack sensitivity.
View Article and Find Full Text PDFPersistence of Zika virus in semen 93 days after the onset of symptoms.
Enferm Infecc Microbiol Clin (Engl Ed)
January 2018
Introduction: Zika virus is mainly transmitted through the bites of infected Aedes mosquitoes, although mother-to-child and sexual transmission have also been described. The presence of Zika virus in semen after infection seems to be not uncommon, but the duration of viral persistence has not been well-determined.
Methods: Molecular, serological and cell culture methods were used for the diagnosis and follow up of a case of Zika virus infection imported from Venezuela.