Waning humoral immunity in coronavirus disease patients has raised concern over usefulness of serologic testing. We investigated antibody responses of 58 persons 8 months after asymptomatic or mildly symptomatic infection with severe acute respiratory syndrome coronavirus 2. For 3 of 4 immunoassays used, seropositivity rates were high (69.0%–91.4%).

Kang JS, et al. J Korean Med Sci. 2019 Apr;34(18):e140. https://doi.org/10.3346/jkms.2019.34.e140

Infections with multidrug-resistant organisms among patients in intensive care units (ICUs) are associated with high mortality. Among multidrug-resistant organisms, carbapenem-resistant Enterobacterales (CRE) harbor important pathogens for healthcare-associated infections, including pneumonia, bacteremia, and urinary tract infections. Risk factors for CRE colonization include underlying comorbid conditions, prior antibiotics exposure, prior use of healthcare facilities, device use, and longer ICU stay. The mortality rate due to invasive CRE infection is 22%–49%, and CRE colonization is associated with an approximately 10-fold increased risk of CRE infection. Infection control measures include hand hygiene, contact precautions, minimizing the use of devices, and environmental control. Additionally, implementing active surveillance of CRE carriage should be considered in ICU settings.

Park DC, et al. Ann Lab Med. 2019 Nov;39(6):537-544. https://doi.org/10.3343/alm.2019.39.6.537

Kim KH, et al. J Korean Med Sci. 2017 Jan;32(1):29-32. https://doi.org/10.3346/jkms.2017.32.1.29

Kim N, et al. J Korean Med Sci. 2017 Aug;32(8):1263-1267. https://doi.org/10.3346/jkms.2017.32.8.1263