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1.
Epidemiol Infect ; 148: e274, 2020 10 28.
Article in English | MEDLINE | ID: mdl-33109284

ABSTRACT

The introduction of treatment and systematic vaccination has significantly reduced diphtheria mortality; however, toxigenic strains continue to circulate worldwide. The emergence of an indigenous diphtheria case with fatal outcome in Greece, after 30 years, raised challenges for laboratory confirmation, clinical and public health management. Toxigenic Corynebacterium diphtheriae was isolated from an incompletely vaccinated 8-year-old boy with underlying conditions. The child passed away due to respiratory distress syndrome, before the administration of diphtheria antitoxin (DAT). All close contacts in family, school and hospital settings were investigated. Pharyngeal swabs were obtained to determine asymptomatic carriage. Chemoprophylaxis was given for 7 days to all close contacts and a booster dose to those incompletely vaccinated. Testing revealed a classmate, belonging to a subpopulation group (Roma), and incompletely vaccinated, as an asymptomatic carrier with an indistinguishable toxigenic strain (same novel multilocus sequence type, designated ST698). This case highlights the role of asymptomatic carriage, as the entry of toxigenic strains into susceptible populations can put individuals and their environment at risk. Maintenance of high-level epidemiological and microbiological surveillance, implementation of systematic vaccination in children and adults with primary and booster doses, availability of a DAT stockpile, and allowing timely administration are the cornerstone to prevent similar incidents in the future.


Subject(s)
Diphtheria/epidemiology , Diphtheria/pathology , Adult , Ampholyte Mixtures , Anti-Bacterial Agents/administration & dosage , Anti-Bacterial Agents/therapeutic use , Antibodies, Bacterial , Child , Clarithromycin/administration & dosage , Clarithromycin/therapeutic use , Contact Tracing , Corynebacterium diphtheriae/isolation & purification , Diphtheria/prevention & control , Diphtheria-Tetanus-acellular Pertussis Vaccines/administration & dosage , Fatal Outcome , Greece/epidemiology , Humans , Male
2.
Clin Microbiol Infect ; 16(2): 184-6, 2010 Feb.
Article in English | MEDLINE | ID: mdl-19694767

ABSTRACT

Intensive care unit (ICU)-acquired infections as a result of multidrug-resistant Gram-negative pathogens remain a serious problem in critically ill patients. Adult ICU patients who received intravenous fosfomycin were prospectively examined to assess its safety and effectiveness as an adjunct to the antimicrobial therapy of life-threatening infections caused by carbapenem-resistant Klebsiella pneumoniae. Fosfomycin was administered intravenously in 11 patients for treatment of hospital-acquired infections caused by carbapenem-resistant K. pneumoniae. Fosfomycin (2-4 g every 6 h) was administered in combination with other antibiotics. The mean +/- SD duration of treatment was 14 +/- 5.6 days. All patients had good bacteriological and clinical outcome of infection. All-cause hospital mortality was two out of 11 (18.2%) patients. No patient experienced adverse events related to the administration of fosfomycin. Intravenous fosfomycin may be a beneficial and safe adjunctive treatment in the management of life-threatening ICU-acquired infections caused by carbapenem-resistant K. pneumoniae.


Subject(s)
Anti-Bacterial Agents/therapeutic use , Cross Infection/drug therapy , Fosfomycin/therapeutic use , Klebsiella Infections/drug therapy , Klebsiella pneumoniae/drug effects , beta-Lactam Resistance , Aged , Aged, 80 and over , Anti-Bacterial Agents/administration & dosage , Anti-Bacterial Agents/adverse effects , Anti-Bacterial Agents/pharmacology , Carbapenems/pharmacology , Critical Illness , Cross Infection/microbiology , Female , Fosfomycin/administration & dosage , Fosfomycin/adverse effects , Humans , Infusions, Intravenous , Intensive Care Units , Klebsiella Infections/microbiology , Klebsiella pneumoniae/isolation & purification , Male , Middle Aged , Prospective Studies , Treatment Outcome
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