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1.
Front Immunol ; 13: 1067749, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36524126

RESUMO

Vaccination against coronavirus disease 2019 (COVID-19) has contributed greatly to providing protection against severe disease, thereby reducing hospital admissions and deaths. Several studies have reported reduction in vaccine effectiveness over time against the Omicron sub-lineages. However, the willingness to receive regular booster doses in the general population is declining. To determine the need for repeated booster vaccinations in healthy individuals and to aid policymakers in future public health interventions for COVID-19, we aim to gain insight into the immunogenicity of the additional bivalent booster vaccination in a representative sample of the healthy Dutch population. The SWITCH ON study was initiated to investigate three main topics: i) immunogenicity of bivalent vaccines after priming with adenovirus- or mRNA-based vaccines, ii) immunological recall responses and reactivity with relevant variants after booster vaccination, and iii) the necessity of booster vaccinations for the healthy population in the future. Clinical trial registration: https://clinicaltrials.gov/, identifier NCT05471440.


Assuntos
COVID-19 , Humanos , COVID-19/prevenção & controle , Pessoal de Saúde , Vacinação , Nível de Saúde , Saúde Pública
3.
BMC Pharmacol Toxicol ; 23(1): 22, 2022 04 08.
Artigo em Inglês | MEDLINE | ID: mdl-35395823

RESUMO

BACKGROUND: The mixing step after medication addition to the infusion bag is frequently omitted during the preparation of drug infusions. However, the importance of mixing when preparing antibiotic infusions is still unknown. METHODS: The primary aim of this study was to assess the importance of the mixing step by comparing the concentrations of unmixed antibiotic infusions (cefuroxime, flucloxacillin, meropenem, and vancomycin) with the declared concentration at regular intervals during infusion. The secondary aim was to compare concentrations between preparation sites (hospital pharmacy versus clinical ward). Infusion bags were run through electronic infusion pumps. For cefuroxime, flucloxacillin, and meropenem, samples were collected 1, 15, and 20 min after starting the administration (infusion duration: 30 min). For vancomycin, samples were collected after 1, 60, and 110 min (infusion duration: 120 min). Vancomycin concentrations were measured using the Architect c4000 analyser and other concentrations using a validated UPC2-MS-MS multimethod. RESULTS: The median concentrations of the four antibiotics were comparable to the declared concentration at all three time points. No significant differences were found between preparation sites. CONCLUSIONS: Spontaneous mixing occurred in the examined antibiotic solutions during normal handling.


Assuntos
Cefuroxima , Floxacilina , Antibacterianos , Infusões Intravenosas , Meropeném , Vancomicina
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