Study of the intestinal microbiota composition and the effect of treatment with intensive chemotherapy in patients recovered from acute leukemia.

A dataset comprising metagenomes of outpatients (n = 28) with acute leukemia (AL) and healthy controls (n = 14) was analysed to investigate the associations between gut microbiota composition and metabolic activity and AL. According to the results obtained, no significant differences in the microbial diversity between AL outpatients and healthy controls were found. However, significant differences in the abundance of specific microbial clades of healthy controls and AL outpatients were found.

Detecting, Quantifying, and Isolating Monkeypox Virus in Suspected Cases, Spain.

When a monkeypox virus outbreak began in several parts of the world in May 2022, timely and accurate diagnosis became mandatory. In our laboratory, a real-time quantitative PCR was designed and evaluated in several patient samples and compared with isolation results. Genomic viral load was related to virus viability.

Evaluation of a Shotgun Metagenomics Approach for Detection of ESBL- and/or Carbapenemase-Producing in Culture Negative Patients Recovered from Acute Leukemia.

Patients diagnosed with acute leukemia (AL) have a weakened immune system. Infections acquired by these patients are cause for concern and especially worrisome when Gram-negative multidrug-resistant (MDR) bacteria are involved, as they are difficult to treat, especially in the case of ESBL- and/or carbapenemase-producing . Culture-based approaches have been relied on over the past decades as the method of choice for the early detection of gut colonization by MDR Gram-negative bacteria.

Characterization of methicillin-resistant Staphylococcus aureus strains colonizing the nostrils of Spanish children.

Objective: To characterize the Staphylococcus aureus strains colonizing healthy Spanish children.

Methods: Between March and July 2018, 1876 Spanish children younger than 14 years attending primary healthcare centers were recruited from rural and urban areas. Staphylococcus aureus colonization of the anterior nostrils was analyzed.