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We investigated the association between gestational diabetes mellitus (GDM) and the rate of peripartum infections (chorioamnionitis and/or endometritis). A retrospective cohort study was conducted using data collected between January 2014 and July 2021. The study group comprised women with GDM, while the control group consisted of women without GDM, matched for age ≥ 35 Y, primiparity, pre-gestational body mass index (BMI), cesarean and vacuum deliveries, and preterm deliveries. The primary outcome was the rate of peripartum infections. Data from 1683 GDM women and 1683 matched controls were analyzed. No significant difference was observed in the rate of peripartum infections between the GDM and control groups (26 (1.5%) versus 14 (0.8%), respectively; p = 0.056), nor in the rates of other infections. After controlling for epidural analgesia rate, BMI, age, and delivery week in multivariable logistic regression, the rate of peripartum infections remained statistically insignificant between the GDM group and controls (OR 1.8, 95% CI 0.9–3.4). The main pathogens isolated in cases of peripartum infections were similar in both groups, primarily consisting of Escherichia coli and Group B Streptococcus. No difference in the rate of study outcomes was observed when vaginal and cesarean deliveries were analyzed separately. Altogether, GDM was not associated with an increased risk for peripartum infections.

Urinary tract infections are more common, more severe, and carry worse outcomes in patients with type 2 diabetes mellitus. They are also more often caused by resistant pathogens. Various impairments in the immune system, poor metabolic control, and incomplete bladder emptying due to autonomic neuropathy may all contribute to the enhanced risk of urinary tract infections in these patients. The new anti-diabetic sodium glucose cotransporter 2 inhibitors have not been found to significantly increase the risk of symptomatic urinary tract infections. Symptoms of urinary tract infection are similar to patients without diabetes, though some patients with diabetic neuropathy may have altered clinical signs. Treatment depends on several factors, including: presence of symptoms, severity of systemic symptoms, if infection is localized in the bladder or also involves the kidney, presence of urologic abnormalities, accompanying metabolic alterations, and renal function. There is no indication to treat diabetic patients with asymptomatic bacteriuria. Further studies are needed to improve the treatment of patients with type 2 diabetes and urinary tract infections.

Background Acute cholecystitis is one of the most common acute surgical diseases. Diabetic patients have been shown to have an increased risk for gallbladder disease, but the correlation between the severity of gallstone disease and diabetes is still debated. The aim of this study is to examine the possible difference in the disease process between patients with diabetes mellitus (DM) and those without. Patients and methods A retrospective study was conducted of all patients who underwent percutaneous cholecystostomy between 2005 and 2015 at Emek Medical Center, Afula, Israel. Demographic and medical history including data on bile and blood culture results, antimicrobial susceptibility, and clinical outcomes were retrieved from patient files. Results The cohort included 272 patients. Mean age was 68 years old, 50.74% were male and 43.75% had diabetes mellitus. Bile cultures were obtained from 252 (92.64%) patients and were positive in 134 (53.2%) patients. In 11 patients (4%) two pathogens were isolated. Blood cultures obtained from 231 patients and were positive in 35 (15.2%). Escherichia coli was the most common isolate, and was seen in 22.3% of positive bile cultures and 40% of blood cultures. Although diabetic patients had significantly more positive bile cultures, the severity of the disease, according to the Tokyo guidelines, was not higher. Conclusions Acute cholecystitis was neither more severe nor had significant difference in bacteriological properties when comparing diabetic patients to non-diabetic ones.

Vaccination, especially with multiple doses, provides substantial population-level protection against COVID-19, but emerging variants of concern (VOC) and waning immunity represent significant risks at the individual level. Here we identify correlates of protection (COP) in a multicenter prospective study following 607 healthy individuals who received three doses of the Pfizer-BNT162b2 vaccine approximately six months prior to enrollment. We compared 242 individuals who received a fourth dose to 365 who did not. Within 90 days of enrollment, 239 individuals contracted COVID-19, 45% of the 3-dose group and 30% of the four-dose group. The fourth dose elicited a significant rise in antibody binding and neutralizing titers against multiple VOCs reducing the risk of symptomatic infection by 37% [95%CI, 15%-54%]. However, a group of individuals, characterized by low baseline titers of binding antibodies, remained susceptible to infection despite significantly increased neutralizing antibody titers upon boosting. A combination of reduced IgG levels to RBD mutants and reduced VOC-recognizing IgA antibodies represented the strongest COP in both the 3-dose group (HR = 6.34, p  = 0.008) and four-dose group (HR = 8.14, p  = 0.018). We validated our findings in an independent second cohort. In summary combination IgA and IgG baseline binding antibody levels may identify individuals most at risk from future infections. Vaccination with multiple doses has been proven effective against severe COVID-19, but protection levels widely vary among individuals. This study examines the serological and immunological profiles in recipients of multiple doses of Pfizer BNT162b2 vaccine for immune markers that correlate with protection against and susceptibility for SARS-CoV-2 infection.

Background The population structure and the correlation between antimicrobial resistance (AMR) phenotypes and genotypes in Aeromonas species isolated from patients with gastroenteritis are not well understood. The aims of the study were to: (1) investigate the antimicrobial susceptibility profiles of Aeromonas species isolated from patients with gastroenteritis; (2) explore the relationship between AMR genes and resistance phenotypes; and (3) describe the population structure of these isolates and provide evidence of transmission events among them. Methods This microbiological survey was performed at the Microbiology Laboratory of the Emek Medical Center in Afula, Israel. Cultivation of Aeromonas was attempted from stool samples that tested positive by PCR. Antimicrobial susceptibility testing (AST) was performed using the Sensititre GN3F microdilution panel. Whole genome sequencing (WGS) was done using the Illumina NextSeq500/550 system. Phylogenetic studies involved multi-locus sequence typing (MLST) and core genome (cg) MLST. Resistance mechanisms were identified using the Comprehensive Antibiotic Resistance Database and compared with the AST results. Results The study included 67 patient-unique isolates. The species that were identified included A. caviae ( n  = 58), A. dhakensis ( n  = 3), A. media ( n  = 2), A. veronii ( n  = 2) and A. hydrophila ( n  = 2). Isolates were almost uniformly susceptible to amikacin, gentamicin, aztreonam, cefepime, ceftazidime, ciprofloxacin and meropenem. All isolates with the exception of 1–2 isolates were resistant to ampicillin, cefazolin and ampicillin-sulbactam which was compatible with the presence of the bla OXA genes. Variable resistance rates were observed to cefuroxime, cefoxitin, ceftriaxone, piperacillin-tazobactam that were not correlated with the presence of other β-lactamase genes. Resistance to tetracycline and trimethoprim-sulfamethoxazole correlated with the presence of tetA and sul1 , respectively. The population structure of A. caviae was highly diverse with the minority of the isolates (16/57) clustering into six defined sequence types. A cgMLST-based distance of four genes was found in one pair of isolates, suggesting common source transmission. Conclusions A. caviae is the dominant species related to gastroenteritis and is characterized by a diverse population structure, with almost no evidence for common-source transmission. Resistance rates to most antimicrobial agents were low and partially matched with the presence of resistance genes.

•Overall IPD incidence was reduced by 23% within 6 years of PCV7/13 implementation.•VT7-IPD incidence decreased by 79% and VT13 by 71%, but non-VT13 increased by 76%.•Overall IPD was stable during the last two years due to serotype replacement.•VT13-IPD continuously decreased, but in adults ≥65y, decrease was smaller and slower.•This herd effect needs to be considered in adult PCV implementation discussions. Introduction of pneumococcal conjugate vaccine (PCV) has nearly eliminated vaccine-type (VT) invasive pneumococcal disease (IPD) in children, yet the reported resulting reduction of adult IPD is variable. We present the indirect impact of sequential PCV7/PCV13 implementation in Israel on adult IPD. An ongoing nationwide active surveillance was initiated on July 2009 when PCV7 was implemented (with Catch-up). PCV7 was gradually replaced by PCV13 since November 2010. Comorbidity and outcome data were collected from medical files. Incidence rates were calculated for overall and vaccine-type IPD. A total of 2579 IPD cases were diagnosed among a population of 5.0–5.5 million adults >18y (2009–2015). Incidence rates were 9.15/100,000 and 10.16/100,000 in the first and second study years, respectively. However, after PCV13 implementation, the rates decreased to 7.19 within four years, and remained stable in the two following years. Within 6years, PCV7-VT-IPD incidence decreased from 2.52 to 0.52 (79%) and PCV13-VT-IPD from 6.15 to 1.81 (71%). Concurrently, non-VT13 incidence increased from 2.99 to 5.25. Approximately 50% of all patients were adults ≥65y, in whom the decrease in PCV13-VT-IPD incidence was smaller and slower (65% vs. >80% decrease in adults <50y). Despite continued reduction in PCV13-VT-IPD, overall IPD was stable during the last two years due to serotype replacement. Yet, the significant decrease in adult IPD, six years post-PCV7/13 implementation emphasizes the importance of indirect protection in achieving overall population impact and should be considered when discussing the potential additional benefits of direct adult PCV vaccination.

Background Healthcare-associated infection (HAI) is a common and largely preventable cause of morbidity and mortality. The COVID-19 pandemic has presented unprecedented challenges to health systems. We conducted a national survey to ascertain hospital characteristics and the use of HAI prevention measures in Israel. Methods We e-mailed surveys to infection prevention and control (IPC) leads of acute care hospitals in Israel. The survey included questions about the use of practices to prevent catheter-associated urinary tract infection (CAUTI), central line-associated bloodstream infection (CLABSI), ventilator-associated pneumonia (VAP), and Clostridioides difficile infection (CDI). The survey also assessed COVID-19 impact and healthcare worker well-being. Results IPC leads from 15 of 24 invited hospitals (63%) completed the survey. Only one-third of respondents reported strong support for IPC from hospital leadership. Although several prevention practices were used by all hospitals (e.g., maximum sterile barrier precautions for CLABSI and real-time assessment of environmental cleaning for CDI), use of other practices was suboptimal—particularly for CAUTI and VAP. COVID-19 had a profound impact on Israeli hospitals, with all hospitals reporting opening of new units to care for COVID patients and most reporting moderate to extreme financial hardship. All hospitals reported highly successful plans to vaccinate all staff and felt confident that the vaccine is safe and effective. Conclusion We provide a status report of the IPC characteristics and practices Israeli hospitals are currently using to prevent HAIs during the COVID-19 era. While many globally accepted IPC practices are widely implemented, opportunities to increase the use of certain IPC practices in Israeli hospitals exist.

Highly variable estimates of COVID-19-associated fungal diseases (IFDs) have been reported. We aimed to determine the incidence of clinically important fungal diseases in hospitalized COVID-19 patients during the first year of the pandemic. We performed a multicenter survey of IFDs among patients hospitalized with COVID-19 in 13 hospitals in Israel between February 2020 and May 2021. COVID-19-associated pulmonary mold disease (PMD) and invasive candidiasis (IC) were defined using ECMM/ISHAM and EORTC/MSG criteria, respectively. Overall rates of IC and PMD among patients with critical COVID-19 were 10.86 and 10.20 per 1000 admissions, respectively, with significant variability among medical centers. PMD rates were significantly lower in centers where galactomannan was a send-out test versus centers with on-site testing (p = 0.035). The 30-day mortality rate was 67.5% for IC and 57.5% for PMD. Treatment with an echinocandin for IC or an extended-spectrum azole for PMD was associated with significantly lower mortality rates (adjusted hazard ratio [95% confidence interval], 0.26 [0.07–0.91] and 0.23 [0.093–0.57], respectively). In this multicenter national survey, variable rates of PMD were associated with on-site galactomannan testing, suggesting under-detection in sites lacking this capacity. COVID-19-related IFDs were associated with high mortality rates, which were reduced with appropriate antifungal therapy.

Long-term outcome of acute pyelonephritis (AP) in adults is unknown. We evaluated the frequency of renal damage 10–20 years after hospitalization for AP in adult women and the utility of technetium Tc 99m–labeled dimercaptosuccinic acid (Tc 99m–DMSA) scanning for detection of renal scars; 63 of 203 women hospitalized with AP during 1982–1992 were included in the study. Tc 99m–DMSA scanning detected renal scarring in 29 women (46%). Multivariate analysis showed that pregnancy and hypoalbuminemia (albumin level, <3.2 g/dL) at hospitalization were independent risk factors for subsequent development of renal scars. At follow-up, hypertension was observed in approximately one-fifth of patients, regardless of renal scarring status. Four women with scars had a glomerular filtration rate of ⩽75 mL/min; none of them developed severe renal impairment. In conclusion, the risk of developing renal scarring after AP in adult women is high. However, clinically relevant renal damage is rare 10–20 years after AP. Tc 99m–DMSA scanning is useful for detecting renal scars in adults but is not routinely needed in practice.

Escherichia coli producing OXA-48-like carbapenemases (OXA-EC) is considered a high-risk pathogen spread primarily in the community in low- and middle-income countries and nosocomially in high-income countries. We investigated the emergence and spread of OXA-EC in Israel, a high-income country with strong carbapenemase-directed infection control in healthcare institutions, by conducting a population-based study using data and isolates from the national surveillance system. A total of 3,510 incident cases of OXA-EC occurred during 2007-2023. During 2016-2023, annual cases rose from 41 to 1,524 and nonnosocomial cases rose from 39% to 57%. Sixty-three sequenced isolates belonged to 20 sequence types (STs) and had 3 bla alleles (bla , bla , and bla ); 71% were chromosomally encoded, and 29% were plasmid-encoded. Nosocomially and non-nosocomially acquired isolates belonged to the same STs and alleles. Most outbreaks involved multiple STs and could only partially be explained by plasmid dissemination. Measures for confronting OXA-EC might need reconsideration.