Publications by authors named "L Montalvo"
Background: Monitoring genotypes of HIV infections in blood donors may provide insights into infection trends in the general population.
Methods: HIV RNA was extracted from plasma samples of blood donors confirmed as HIV positive by blood screening nucleic acid and antibody tests. HIV genome target regions were amplified using nested real time-polymerase chain reaction followed by next-generation sequencing.
Environmental gradients have the potential to influence genetic differentiation among populations ultimately leading to allopatric speciation. However, environmental gradients can also facilitate hybridization between closely related taxa. We investigated a putative hybrid zone in western Ecuador, involving two polytypic wren species (Aves: Troglodytidae), and .
View Article and Find Full Text PDFArticle Synopsis
- A study tested plasma samples from 1596 donors who reported COVID-19 symptoms after donating blood for SARS-CoV-2 RNA and specific antibodies.* -
- Results showed that having prior infection or vaccination provided protection against developing SARS-CoV-2 RNAemia and symptomatic infection.* -
- The rates of RNAemia remained consistent regardless of whether the samples were taken during the Delta or Omicron variant phases.*
SARS-CoV-2 positivity rates in asymptomatic workers at a cancer referral center in Mexico City: A prospective observational study in the context of adapting hospitals back to regular practice.
Am J Infect Control
December 2021
Background: Healthcare workers are at increased risk of SARS-CoV-2 infection. The positivity rates in hospitals that do not receive patients with COVID-19, such as the National Cancer Institute (INCan) in Mexico, and the associated factors are unknown.
Objective: To assess the incidence and factors associated with SARS-CoV-2 infection in health workers at INCan.