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Revista Argentina de Microbiología / Argentinean Journal of Microbiology Ahead of print
Journal Information

Ahead of print

Ahead of print are accepted, peer reviewed articles that are not yet assigned to volumes/issues, but are citable using DOI. More info

Caracterización molecular del gen ORF5 (GP5) del agente causal del síndrome respiratorio y reproductivo porcino (PRRS) detectado en granjas porcinas de Lima, Perú
Rony Cotaquispe Nalvarte, Miriam Legua Barrios, Patricia Escajadillo Luján, Edgard De la Cruz Vásquez, Jennifer Toskano Hurtado
10.1016/j.ram.2025.07.005
Highlights

  • Existe la prevalencia de PRRSV-2 y otros linajes en Lima región.

  • ORF5 permite la vigilancia molecular de los linajes y especies del virus

  • 20 cepas se relacionan con el sublinaje 1.5 en el árbol filogenético del 95% Bootstrap.

  • Los linajes 36, 37, 38, 39 poseen un 83% de homología nucleotídico con el sublinaje 1.5.

Full text access
Available online 5 September 2025
Antimicrobial activity of Streptomyces spp. isolated from bean rhizospheric soil against Xanthomonas sp.
Jesús Rafael Trinidad-Cruz, Gabriel Rincón-Enríquez, Zahaed Evangelista-Martínez, Evangelina Esmeralda Quiñones-Aguilar
10.1016/j.ram.2025.07.002
Highlights

  • Rhizospheric soil is a source of actinobacterial isolates antagonistic to Xanthomonas.

  • The isolates with significant antimicrobial activity belong to the genus Streptomyces.

  • Some isolates from microwave-irradiated soil exhibited strong antimicrobial activity.

Full text access
Available online 19 August 2025
Clinical management of Lancefieldella parvula bacteremia: A case study and review of the literature
Cynthia Wenglinski, Delphine Martiny, Michael Watchi, Fabio Silvio Taccone, Charles-Hervé Vacheron
10.1016/j.ram.2025.06.004
Highlights

  • Bacteriemia due to Lancefieldella parvula is uncommon.

  • We reported the case of a bacteriemia to Lancefieldella parvula, with an unknown source of infection.

  • Antibiogram showed susceptibility to most antimicrobials tested, except for clindamycin.

Full text access
Available online 25 July 2025
Severe disseminated nfections in cohabiting people: Genotypic description of methicillin-susceptible Staphylococcus aureus (MSSA) isolate belonging to CC398 clonal complex
Lucía Rago, Gabriela Rubinstein, Carlos Federico Spinelli, María Sol Haim, Tomás Poklépovich Caride, Sabrina Di Gregorio, Marta Mollerach
10.1016/j.ram.2025.06.003
Highlights

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    CC398-MSSA is an emerging and public health-relevant clone in South America.

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    Outbreaks involving MSSA clones are less commonly reported than MRSA outbreaks.

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    CC398 human clade shows inducible resistance to erythromycin and clindamycin by ermT.

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    This human clade is highly virulent with evidence of transmission among cohabitants.

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    CC398-MSSA can cause severe multifocal MSSA infections within a family.

Full text access
Available online 25 July 2025
Phenotypic and genomic surveillance of invasive Neisseria meningitidis isolates in Argentina (2015–2022): Clonal structure and vaccine implications
Adriana Efron, Luciana Moreira, Federico Lorenzo, Denise De Belder, María Moscoloni, Alejandra Corso, Mauricio Santos, Tomás Poklepovich, ... María Sol Haim
10.1016/j.ram.2025.04.005
Highlights

  • MenB was predominant in Argentina during 2015–2022, followed by MenW.

  • ST-865 cc was prevalent among MenB isolates unlike invasive MenB in the world.

  • The clonal complexes belonged to MenB in Argentina was stable over the years.

  • Despite limitations WGS is a cost-effective method for analyzing vaccine antigens.

  • All MenW isolates belonged to the hypervirulent clonal complex ST-11.

Full text access
Available online 11 July 2025
Risk factors associated with neonatal sepsis due to Serratia marcescens in a public hospital in Mexico: A case–control study
Juan Carlos Lona-Reyes, Lucia Miramontes-Buiza, Luis Fernando Frías-Flores, Jose Angel Regla-Nava, Jesús González-Carmona, Juan Antonio Gallegos-Marín, Mariana Chávez-Rodríguez
10.1016/j.ram.2025.04.006
Highlights

  • 88.6% of neonatal sepsis events due to S. marcescens were late-onset sepsis.

  • 41.4% showed persistently positive cultures 48h after treatment.

  • In newborns with neonatal sepsis due to S. marcescens, 14.3% presented meningitis.

Full text access
Available online 12 June 2025
Effect of probiotic bacteria, phycocyanin and tarragon essential oil on the physiochemical, microbiological, and sensory properties of a mouth freshener tablet
Fatemeh Habibi, Bahareh Nowruzi, Maryam Ghane
10.1016/j.ram.2025.04.004
Highlights

  • Importance of cyanobacterial pigment and probiotics in formulation of mouth freshener tablet.

  • The addition of phycocyanin and tarragon essential oil significantly increased the antioxidant activity of samples.

  • The mouth freshener tablets can be a suitable agent for oral disinfection and maintaining public health.

Full text access
Available online 29 May 2025