Immunization practices for workers. Update recommendations

MARÍA CARMEN SÁENZ-GONZÁLEZ, IGNACIO HERNÁNDEZ-GARCÍA             

Introduction. Infectious diseases are a major cause of morbidity and mortality in the workplace. Worker vaccination against a number of infectious diseases is considered the most effective strategy of primary prevention to control them.
Sources. A literature review was performed in Medline and websites of Spanish scientific societies were consulted to detect workers vaccination recommendations. The inclusion criteria was that the recommendation had been made from January 2007 to October 2012.
Development. Seventeen papers were selected and websites of the Ministry of Health, Spanish Society of Chemotherapy, Spanish Society of Preventive Medicine, Public Health and Hygiene, and Vaccinology Spanish Association provided relevant information to our review. Groups of workers at increased risk of acquiring infectious diseases during their professional activity were determined, and vaccination recommendations were established (vaccination against tetanus, diphtheria, pertussis, hepatitis A, hepatitis B, pneumococcus, meningococcus, measles, rubella, mumps, chickenpox, influenza, Haemophilus influenzae b, typhoid, polio, tuberculosis and rabies).
Conclusions. Epidemiological changes in recent years, with the re-emergence of some diseases such as whooping cough, measles or mumps, force the exposed workers (especially the health care workers) to check their immune status.

Rev Esp Quimioter 2013:26(4):287-297 [pdf]

EPICO 2.0 PROJECT. Development of educational therapeutic recommendations using the DELPHI technique on invasive candidiasis in critically ill adult patients in special situations                                 
 

RAFAEL ZARAGOZA, RICARD FERRER, EMILIO MASEDA, PEDRO LLINARES, ALEJANDRO RODRIGUEZ ON BEHALF OF THE EPICO PROJECT GROUP               

Introduction. Although there has been an improved management of Invasive Candidiasis in the last decade, still controversial issues remain, especially in different therapeutic critical care scenarios.
Objectives. We sought to identify the core clinical knowledge and to achieve high agreement recommendations required to care for critically ill adult patients with Invasive Candidiasis for antifungal treatment in special situations and different scenarios.
Methods. Second Prospective Spanish survey reaching consensus by the Delphi technique, conducted anonymously by electronic e-mail in the first phase to 23 national multidisciplinary experts in invasive fungal infections from five national scientific societies including Intensivists, Anesthesiologists, Microbiologists, Pharmacologists and Infectious disease specialists, answering 30 questions prepared by a coordination group after a strict review of literature in the last five years. The educational objectives spanned four categories, including peritoneal candidiasis, immunocompromised patients, special situations and organ failures. The agreement among panellists in each item should be higher than 75% to be selected. In a second phase, after extracting recommendations from the selected items, a meeting was heldwith more than 60 specialists in a second round invited to validate the preselectedrecommendations.
Measurements and Main Results. In the first phase, 15 recommendations were preselected (peritoneal candidiasis (3), immunocompromised patients (6), special situations (3) and organ failures (3)). After the second round the following 13 were validated: Peritoneal candidiasis (3): Source control and early adequate antifungal treatment is mandatory; empirical antifungal treatment is recommended in secondary nosocomial peritonitis with Candida spp colonization risk factors and in tertiary peritonitis. Immunocompromised patients (5): Consider hepatotoxicity and interactions before starting antifungal treatment with azoles in transplanted patients; treat candidemia in neutropenic adult patients with antifungal drugs at least 14 days after the first negative blood culture and until normalization of neutrophil count is achieved. Caspofungin, if needed, is the echinocandin with most scientific evidence to treat candidemia in neutropenic adult patients; Caspofungin is also the first choice drug to treat febrile candidemia; in neutropenic patients with candidemia remove catheter. Special situations (2): In moderate hepatocelular failure, patients with invasive candidiasis use echinocandins (preferably low doses of anidulafungin and caspofungin) and try to avoid azoles; in case of possible interactions review all of the drugs involved and preferably use Anidulafungin. Organ failures (3): Echinocandins are the safest antifungal drugs; reconsider the use of azoles in patients under renal replacement therapy; all of the echinocandins are accepted for the treatment of patients under continuous renal replacement therapy and do not require dosage adjustment.
Conclusions. Treatment of Invasive Candidiasis in ICU patients requires a broad range of knowledge and skills as summarized in our recommendations. These recommendations may help to optimize the therapeutic management of these patients in special situations and different scenarios and improve
their outcome based on the DELPHI methodology.

Rev Esp Quimioter 2014:27(3):196-212 [pdf]

Prevention and control of nosocomial and health-care facilities associated infections caused by species of Candida and other yeasts

JAVIER PEMÁN, RAFAEL ZARAGOZA, MIGUEL SALAVERT             

Knowledge of the epidemiology of invasive fungal diseases caused by yeasts (Candida spp., especially) in health care settings allows the establishment of the levels necessary for its prevention. A first step is to identify groups of patients at high risk of nosocomial invasive fungal infections, establish accurate risk factors, observing the periods of greatest risk, and analyze the epidemiological profile in genera and species as well as the patterns of antifungal resistance. Secondly, mechanisms to avoid persistent exposure to potential fungal pathogens must be programed, protecting areas and recommending measures such as the control of the quality of the air and water, inside and outside the hospital, and other products or substances able to cause outbreaks. Finally, apart from the correct implementation of these measures, in selected patients at very high risk, the use of antifungal prophylaxis should be considered following the guidelines published.

Rev Esp Quimioter 2013:26(4):298-311 [pdf]

Characterization of gene expression associated with both the AcrAB/TolC system and the membrane permeability, in Salmonella spp isolates with and without gyrA mutation                                 
 

ANTONIO GALIANA, LAURA SÁNCHEZ-GUILLÉN, JUAN CARLOS RODRÍGUEZ, ROSA CREMADES, MIGUEL SANTIBAÑEZ, RAFAELA FERRARI, MONTSERRAT RUIZ-GARCÍA, PILAR LÓPEZ, GLORIA ROYO               

Introduction. The marA, soxS, ramA, acrB and ompF genes have been studied in order to characterize mechanisms of AcrAB-TolC active efflux pumps and membrane permeabilityalterations that reduce fluoroquinolones susceptibility in Salmonella spp.
Methods. Mutations in marA, soxS, ramA, acrB and ompF genes were detected, as well as their expression levels in presence and absence of ciprofloxacin, calculating the level of change between them by qPCR. Data were analysed by using SPSS 19.0.
Results. No mutations in these genes were found, but both AcrAB-TolC regulatory genes and structural acrB gene expression were affected by ciprofloxacin in both mutant strains and wild type bacterial strains (WT). The activation of the marA gene in presence of drug was higher in WT strains (level of change 0.823) than in mutants strains (level of change 0.158; p=0.049). In gyrA mutants, a reduction in ompF gene expression in presence of ciprofloxacin was found (level of change -0.949 p=0.017).
Conclusion. The reduction of fluoroquinolones susceptibility in Salmonella spp is a complex process, in which several different bacterial mechanisms are involved. This study has found a high difference in the degree of participation among studied mechanisms, between bacterial strains with and without gyrA mutation. Whereas WT strains activated efflux pumps especially through marA gene, mutants supressed ompF gene expression related to porins.

Rev Esp Quimioter 2014:27(4):239-243 [pdf]

Serological markers of Spanish and immigrant pregnant women in the south of Madrid during the period 2007-2010                                
 

FÁTIMA LÓPEZ-FABAL, JOSÉ LUÍS GÓMEZ-GARCÉS             

Objective. The prevalence and evolution of the markers including in the serologic profile of pregnant woman was studied in our hospital during a period of 4 years.
Material and methods. A retrospective study of the prevalence of antibodies against Treponema pallidum, human immunodeficiency virus (HIV), Toxoplasma gondii, rubeola virus and hepatitis B virus (HBV), was performed in our hospital among Spanish and immigrant pregnant women, from January 2007 to December 2010.
Results. A total of 8,012 pregnant were studied, 2,752 (34.2%) of them were foreign. The non-treponemal tests (RPR) were positive in 40 (0.49%) women, being the prevalence slightly superior in foreigners than in natives (0.8 as opposed to 0.3%). The IgG anti-T. gondii global prevalence was 23,35% (1,874 patients). In Spanish pregnant this prevalence was 18%, and 33.8% in the immigrant women. Almost the total of Spanish pregnant (99.5%) displayed IgG antibodies against rubeola virus whereas in the foreigners this rate was 61.6%. The presence of HBsAg for HBV was tested in 86.6% of pregnant women (6,939/8,012), being positive the 0.75% (59 patients), with a prevalence in foreigners greater than in Spanish (1.65 as opposed to 0.4%). Antibodies anti-HVI were detected in 22 patients (0.22%), being the prevalence 0.15% among the Spanish and 0.51% among the foreigners.

Rev Esp Quimioter 2013:26(2):108-111 [pdf]