Impact of the 4th of August Beirut explosion mass casualty incident on a university hospital microbial Flora.

BACKGROUND: Following the Beirut explosion, our university hospital received at least 350 casualties. Subsequently, infection control standard practices were compromised. Concerns for Multi-Drug Resistant Organisms (MDROs) infections in injured patients and a resulting hospital outbreak were raised. The objectives of the study were to compare the rate of hospital growing MDROs 6 months before and 6 months after the Beirut explosion, to identify emerging microorganisms and to evaluate the change in surgical infection prevention practices. METHODS: This is a retrospective chart review of patients with hospital acquired infections (HAI) admitted to the hospital before and after the Beirut explosion. The study was conducted between February 4, 2020 and January 4, 2021. Excluded patients were those transferred from other hospitals and those with community acquired infections. The primary outcome was to identify the rate of growing MDROs post explosion. The secondary outcomes were identifying antibiotics used for surgical prophylaxis in patients requiring surgeries and patients diagnosed with a HAI. Therefore, patients were divided in three groups. Control group included patients admitted with explosion-related injuries on that same day. Patients admitted and between February 4 and August 4 and diagnosed with HAI were compared to those admitted post August 4 with explosion-related HAI and to patients diagnosed with non-explosion-related HAI between August 4 and January 4, 2021. An estimated rate of 18-22% MDRO was needed to achieve a statistical significance with 80% power and 0.05 α. Pearson Chi square test was used to analyze the primary outcome. RESULTS: A total of 82 patients with 150 cultures were included in this study. Data showed an increase in the rate of MDRO after the explosion with 37.1% of the cultures taken before the explosion and 53.1% after the explosion (p = 0.05). When comparing the types of HAI in both groups, culture sites were significantly different between pre- and post-explosion patients (p = 0.013). However, both groups had similar types of microbes (p = 0.996) with an increase in candida related infections. CONCLUSION: These findings confirmed that the Beirut explosion impact on antimicrobial resistance was similar to combat zone incidence, where an increase in MDROs rate such as Escherichia coli (E.Coli) and Stenotrophomonas maltophilia, in addition to the increase in candida related infections.

Cryptococcal meningitis post-covid-19 infection: Immunomodulation, a double-edged sword.

Cryptococcal meningitis is an opportunistic infection associated with altered immunity. Immunomodulatory agent use in severe coronavirus disease 2019 (COVID-19) may predispose such infections. Here, we present a 75-year-old male patient who presented with fever and altered general status after severe COVID-19 infection and developed cryptococcal meningitis. Opportunistic infection may arise from the use of immunomodulation in severe COVID-19, especially in the elderly population. This article describes the case and extensively reviews cryptococcal disease post-COVID-19 literature, highlighting the risk from immunosuppressive treatment.

The impact of vaccination on the burden of invasive pneumococcal disease from a nationwide surveillance program in Lebanon: an unexpected increase in mortality driven by non-vaccine serotypes.

BACKGROUND: The impact of pneumococcal conjugate vaccines (PCVs) on the burden of invasive pneumococcal disease (IPD) and serotype distribution was examined across age groups from data collected by the Lebanese Inter-Hospital Pneumococcal Surveillance Program. METHODS: Between 2005 and 2020, 593 invasive Streptococcus pneumoniae isolates were collected from 79 hospitals throughout Lebanon. Serotypes and antimicrobial resistance (AMR) profiles were identified, and trends compared over 3 eras: PCV7, post-PCV7/ pre-PCV13, and PCV13 eras. RESULTS: The prevalence of PCV7 serotypes decreased significantly from 43.6% in the PCV7 era to 17.8% during the PCV13 era (p<0.001). PCV13-only serotypes remained stable in the PCV13 compared to the post-PCV7 eras, especially serotypes 1 and 3, whereas non-vaccine types (NVT) increased throughout the study period, especially 24 and 16F. The mortality rate increased substantially from 12.5% (PCV7 era) to 24.8% (PCV13 era). A significant decrease in AMR was observed across the three study eras. CONCLUSION: PCVs substantially impacted IPD and AMR in vaccinated and unvaccinated populations despite an increase in mortality driven by NVT. Broadening the recommendation of vaccination to include older age-groups, using higher valency vaccines, and implementing stringent antimicrobial stewardship are likely to further impact the burden of IPD.

The effect of the BNT162b2 vaccine on antinuclear antibody and antiphospholipid antibody levels.

The Food and Drug Administration (FDA) approved the first SARS-CoV-2 mRNA vaccine (Pfizer-BioNTech) in December 2020. New adverse events have emerged since these vaccines have reached market. Although no clear association between messenger ribonucleic acid (mRNA) vaccines and autoimmunity has emerged, the significance of such an association warrants further exploration. After obtaining consent, a standardized survey on baseline characteristics and other relevant variables was conducted on unvaccinated individuals who were scheduled for vaccination and had not previously contracted COVID-19. Blood samples were collected from participants prior to the first dose, prior to the second dose, and 1 month after the second dose. All collected samples were tested for antinuclear antibody (ANA) titers using indirect immunofluorescence microscopy kits, and antiphospholipid (APS) immunoglobulin M (IgM) and immunoglobulin G (IgG) levels using an enzyme-linked immunoassay (ELISA) technique. ANA titers were positive for 9 participants out of 101 (8.9%) in the first pre-vaccination draw. For the second draw, the number of participants testing positive for ANA decreased to 5 (5%). For the last draw, 6 (5.9%) participants tested positive for ANA titers. One participant tested positive for APS IgM at the first pre-vaccination draw, 2 tested positive at the second draw, and 2 at the third draw. As for APS IgG titers, all participants tested negative in the three draws. McNemar's test for two dependent categorical outcomes was conducted on all variables and did not show a statistical significance. The McNemar test of these two composite variables (i.e., ANA/APS, first draw vs. ANA/APS, second and third draws) did not show statistical significance. The 2-sided exact significance of the McNemar test was 1.0. The Friedman test also showed no significance (p = 0.459). No association was found between BNT162b2 vaccine administration and changes in APS and ANA titers. The benefits of the BNT162b2 vaccine significantly outweigh any possible risk of autoimmune dysregulation considering the current evidence.

Trends & predictors of non-AIDS comorbidities among people living with HIV and receiving antiretroviral therapy in Lebanon.

ABSTRACT: Combined antiretroviral therapy (cART) increased the life expectancy of people living with Human Immunodeficiency Virus (HIV) (PLHIV) and remarkably reduced the morbidity and mortality associated with HIV infection. Consequently, PLHIV are experiencing non-acquired immunodeficiency syndrome (AIDS) associated comorbid conditions including diabetes, hyperlipidemia, hypertension, and cardiovascular disease. The aim of this study is to determine the frequency of non-AIDS associated comorbid conditions among a cohort of PLHIV on cART in Lebanon.Data were collected between November 2018 and December 2019 from 105 voluntary participants. A standardized questionnaire was used to collect demographic and behavioral data including lifestyle, smoking, physical activity, substance use and abuse in addition to co-infections and family history of non-communicable diseases. Moreover, data on occurrence and treatment of cardiovascular disease, hypertension, diabetes, lipid and metabolic disorders as well as mental health were collected. Blood samples were used to assess the levels of fasting blood sugar (FBS), glycosylated hemoglobin (HbA1C), triglycerides (TG), low-density lipoprotein (LDL), high-density lipoprotein, total cholesterol, and serum creatinine.Hypertension (29.5%) and hyperlipidemia (29.5%) followed by diabetes (23.7%) and cardiovascular disease (9.7%) were mainly reported among study participants. Higher rate of comorbid conditions was observed among participants >40 years of age than those ≤40 years with both hypertension and hyperlipidemia most commonly reported. Older age (odds ratio [OR] 7.6; 95% CI: 1.83-31.98; P = .005) is associated with higher odds of having hyperlipidemia. Moreover, participants on cART for ≥10 years are 5 times more likely to have hyperlipidemia (OR 5; 95% CI: 1.08-22.73; P = .039). Our results also showed that study participants did not experience anxiety, depression or somatic symptoms and that there was no association between these mental disorders and older age or comorbidities.Our results provide important information on HIV trends and associated comorbidities in Lebanon and can be used to improve the management of non-communicable diseases among PLHIV.

Sexual Violence in Childhood and Post-Childhood: The Experiences of Young Men Who Have Sex With Men in Beirut.

Sexual violence has been found to have psychosocial and sexual ramifications for men who have sex with men (MSM) but has not been studied in the Middle East. We assessed the prevalence and correlates of experiences of child and post-child sexual violence among young MSM residing in Beirut, Lebanon. In total, 226 MSM, aged 18 to 29, were recruited with long-chain peer referrals and administered a survey that included questions on history of being pressured to have sex, as well as specific forms of sexual harassment and abuse, in addition to measures of psychosocial functioning and sexual behavior. Logistic regression analysis was used to examine correlates of child sex abuse and experiences of sexual violence post-childhood; 17.3% experienced sexual abuse as a child (below age 13), while 63.3% experienced any form of sexual violence post-childhood-furthermore, 48.7% had experienced being forced or pressured to have sex during their lifetime, including 32.3% prior to age 18. Participants who experienced child sex abuse were more likely to experience abusive relationships in adulthood, as well as at least one type of sexual harassment/abuse post-childhood. Experience of any sexual violence post-childhood was correlated with greater recent sexuality-related discrimination and more recent male sex partners. These findings reveal a high prevalence of sexual violence among MSM in Beirut, both in childhood and post-childhood. More research within the Middle East is needed to better understand the drivers of sexual violence in this population, and how to best provide prevention and coping services.

Violence and Discrimination Against Men Who Have Sex With Men in Lebanon: The Role of International Displacement and Migration.

Homosexuality is illegal in Lebanon and men who have sex with men (MSM) may experience discrimination. Displaced Syrians, who currently comprise approximately 20% of Lebanon's population, also face discrimination. Individuals who are members of both groups may experience heightened levels of discrimination and abuse. In partnership with local nongovernmental organizations serving the community, we recruited N = 292 MSM in Beirut, Lebanon. Participants were interviewed about experiences of violence and discrimination in the context of a larger health behavior survey, and all were offered anonymous HIV testing. Responses were analyzed using the framework of intersectionality, combining regression, geographical mapping of reported experiences, and network analysis of the participant recruitment pattern. MSM, born outside of Lebanon, who are primarily from Syria, face higher levels of discrimination and violence than native-born MSM (71% vs. 32% reporting at least one type of discrimination or violence). Socioeconomic status is also associated with discrimination and violence overall, and among native- and foreign-born MSM. Experiences vary by town and neighborhood, and are highly correlated between recruiting and recruited participants.These results highlight health risks faced by foreign-born MSM in Lebanon.

Appropriateness of Therapeutic Antibiotic Prescriptions by Lebanese Dentists in the Management of Acute Endodontic Abscesses.

The misuse of antibiotics in dentistry is a serious concern especially in regards to the emergence of antibiotic resistance. The objective of the study was to evaluate the appropriateness of antibiotics prescriptions by Lebanese dentists to patients with endodontic abscesses and their compliance with the guidelines of the American Association of Endodontists (AAE) and the European Society of Endodontology (ESE). The treating dentists recorded clinical information from 127 patients diagnosed with acute or chronic endodontic abscess. The information also included the type of antibiotic prescribed, dosage, and duration of the prescription. Prescriptions were not given to 14/20 patients with an acute endodontic abscess despite the presence of an indication to prescribe. All the prescriptions given to patients with an acute endodontic abscess were inappropriate according to the ESE and AAE guidelines. Antibiotics were also prescribed unnecessarily to 17/42 patients with a chronic endodontic abscess. This study concluded that antibiotics prescriptions by Lebanese dentists for the management of endodontic abscesses were inappropriate. Penicillin V potassium (VK) was not available in Lebanon when the study was conducted. Only broad-spectrum antibiotics were prescribed. This finding raises concerns about the emergence of antibiotic resistance.

HIV in Lebanon: Reasons for Testing, Engagement in Care, and Outcomes in Patients with Newly Diagnosed HIV Infections.

Little is known about clinical presentation and cascade of care among patients living with HIV (PLWH) in Beirut, Lebanon. The study aims to examine the reasons for HIV testing and to evaluate the clinical characteristics of, predictors of advanced HIV stage at presentation in, and rates of ART initiation, retention in care, and viral load suppression among PLWH in Lebanon. We conducted a retrospective study of PLWH presenting to a tertiary-care centre-affiliated outpatient clinic from 2008 to 2016 with new HIV infection diagnoses. We identified a total of 423 patients: 89% were men, 55% were 30-50 years old, and 58% self-identified as men who have sex with men. About 35% of the patients had concurrent sexually transmitted diseases at the time of HIV diagnosis. Thirty percent of infection cases were identified by provider-initiated HIV testing, 36% of cases were identified by patient-initiated testing, and 34% of patients underwent testing for screening purposes. The proportion of individuals presenting with advanced HIV disease decreased from 40% in 2008-2009 to 24% in 2014-2015. Age older than 50 years and identification of HIV by a medical provider were independent predictors of advanced HIV infection at presentation. Among patients having indications for treatment (n = 253), 239 (94%) were prescribed antiretroviral therapy, and 147 (58%) had evidence of viral suppression at 1 year. Furthermore, 266 patients (63%) were retained in care. The care continuum for PLWH in Lebanon is comparable with those in high-income countries yet still far behind the Joint United Nations Programme on HIV/AIDS 90-90-90 set target.

Gay Community Integration as Both a Source of Risk and Resilience for HIV Prevention in Beirut.

BACKGROUND: Aspects of sexual identity development, including integration into gay community, have been found to be associated with sexual risk behavior among men who have sex with men (MSM), but not in the Middle East. METHOD: Drawing on the minority stress model and integrated theory of health behavior, we examined the relationships between measures of sexual identity development and HIV protective behaviors (condomless anal sex and HIV testing) and the mediating roles of HIV knowledge, peer judgmentalism, and discrimination, in a sample of 226 young MSM in Beirut, Lebanon. A cross-sectional, mediation analysis was conducted using a bootstrapping approach and logistic regression models. RESULTS: Fifteen percent of the sample reported recent condomless anal sex with partners whose HIV status was positive or unknown, and 82.3% had ever been tested for HIV. Multivariate logistic regression analysis showed that greater integration into the gay community was significantly associated with having recent condomless anal sex with positive/unknown HIV status partners and having any history of HIV testing, after controlling for covariates. Knowledge of HIV risk was associated with gay integration as well as both condomless anal sex with positive or unknown HIV status partners and any history of HIV testing, but it only served as a (partial) mediator of HIV testing. Peer judgmental communication about sex and sexuality-related discrimination were related in bivariate analysis to gay integration and condomless anal sex, but they too did not prove to be significant mediators of the relationship between these two constructs. CONCLUSION: These findings highlight the potential sexual health benefits and vulnerabilities associated with increased integration into the gay community for young MSM in Beirut and the need to better understand how to increase HIV knowledge while limiting its potential to increase sexual risk behavior.

A compilation of antimicrobial susceptibility data from a network of 13 Lebanese hospitals reflecting the national situation during 2015-2016.

Background: There is a lack of official national antimicrobial resistance (AMR) data in Lebanon. Individual hospitals generate their own antibiotic susceptibility data in the form of yearly pamphlets. Methods: In this study, antibiotic susceptibility data from 13 hospitals distributed across different governorates of Lebanon were collected to conduct a compilation-based surveillance of AMR in Lebanon for the years 2015-2016. The findings were compared with those of a previous nationwide study in this country conducted between 2011 and 2013 as well as with similar data obtained from the 2015 and 2016 European surveillance reports of AMR. To provide a clear presentation of the AMR situation, mean percent susceptibility of different antibiotic-microbe combinations was calculated. Results: During 2015-2016, the percent susceptibility of Enterobacteriaceae to third-generation cephalosporins and to carbapenems was 59 and 97%, respectively. Among Pseudomonas aeruginosa and Acinetobacter spp., carbapenem susceptibility reached 70 and 12%, respectively. Among Gram positive organisms, the percent susceptibility to methicillin in Staphylococcus aureus was 72%, that to vancomycin in Enterococcus spp. was 98% and that to penicillin in Streptococcus pneumoniae was 75%. Compared with results of 2011-2013, there was an overall trend of decreased susceptibility of bacteria to the tested antibiotics, with a variation of 5 to 10%. The antibiotic susceptibility data from Lebanon were found to be comparable with those from Eastern and South-eastern European countries. Conclusion: This study highlights the need to establish a robust national AMR surveillance system that enables data from Lebanon to be included in global AMR maps.

Genomic attributes of extended-spectrum ß-lactamase-producing Escherichia coli isolated from patients in Lebanon.

AIM: Extended-spectrum ß-lactamase-producing (ESBL) Escherichia coli are a public threat worldwide. This study aimed at analyzing the genomic and functional attributes of nine ESBLs taken from rectal swabs. MATERIALS & METHODS: Samples were isolated from patients admitted for gastrointestinal and urological procedures at the University Medical Center-Rizk Hospital (UMCRH) in Lebanon. Illumina paired-end libraries were prepared and sequenced. RESULTS: The isolates were distributed into five lineages: ST131, ST648, ST405, ST73 and ST38, and harbored bla OXA-1, bla TEM-1B, bla TEM-1C and aac(6')Ib-cr. ST131 isolates were carriers of stx2 converting I phage. CONCLUSION: This is the first comprehensive genomic analysis performed on ESBLs in Lebanon.

Prevalence of Staphylococcus aureus methicillin-sensitive and methicillin-resistant nasal and pharyngeal colonization in outpatients in Lebanon.

BACKGROUND: There is an increasing concern about methicillin-resistant Staphylococcus aureus (MRSA) infections in the community. This study aimed to evaluate the rate of S aureus nasopharyngeal colonization in outpatients as the primary endpoint, and also to study the impact of several possible risk factors, including recent hospitalization, recent surgical procedures, and antibiotic intake. METHODS: A total of 1,526 consecutive outpatients underwent surveillance cultures after completing a questionnaire. Isolated S aureus strains were tested for antibiotic susceptibility. The Pearson χ(2) test was used for statistical analysis. The differences were considered to be statistically significant at a P value <.05. RESULTS: Out of the 1,526 outpatients tested, 133 (8.7%) carried S aureus in the nose and/or throat. Only 2 of those cases were MRSA, and both were isolated from the nose. One hundred thirty-one patients had methicillin-sensitive S aureus, 13 with simultaneous carriage in the nose and throat. Among the risk factors, a relative working in health care, presence of an intravascular device, recent dental procedure, and health club use were significantly associated with an increased risk of S aureus colonization, with P values of .00, .02, .04, and .00, respectively, calculated by the χ(2) test. CONCLUSIONS: The prevalence of MRSA is still low in our study population within the Lebanese community. The only significant risk factors playing a role in increasing the carriage of S aureus were related to health care exposure.

Salmonella typhi sternal wound infection.

Samonella typhi usually causes gastrointestinal infections. Few reports in the literature described skin and soft tissue infections related to Salmonella species, especially in immunocompetent patients. Our case exhibited sternal abscess growing Salmonella typhi.

Gender and care: access to HIV testing, care, and treatment.

HIV transmission and occurrence of AIDS in the Middle East and North Africa region (MENA) is increasing, while access to ART in the region lags behind most low to middle-income countries. Like in other parts of the world, there is a growing feminization of the epidemic, and men and women each confront unique barriers to adequate HIV prevention and treatment services, while sharing some common obstacles as well. This paper focuses on important gender dimensions of access to HIV testing, care and treatment in the MENA region, including issues related to stigma, religion and morality, gender power imbalances, work status, and migration. Culturally specific policy and programmatic recommendations for improving HIV prevention and treatment in the MENA region are offered.

Penicillin-resistant Streptococcus pneumoniae in Lebanon: the first nationwide study.

A total of 123 clinical isolates of Streptococcus pneumoniae were collected from all over Lebanon and tested for their susceptibility to penicillin: 30.1% were susceptible (minimum inhibitory concentration (MIC) < or = 0.06 microg/mL), 56.1% were intermediately susceptible (MIC 0.09-1.0 microg/mL) and 13.8% were resistant (MIC > 1.0 microg/mL). The oxacillin disk screening test detected all penicillin-resistant isolates, but erroneously designated two penicillin-intermediate isolates as penicillin susceptible. All isolates were consistently susceptible to levofloxacin, but cross-resistance between penicillin and the three tested cephalosporins was frequently noted. The in vitro activity of amoxicillin/clavulanic acid paralleled that of penicillin; however, 92.7% of the isolates were designated as susceptible based on the recommended interpretive cut-off point (MIC < or = 2/1 microg/mL). This discrepancy represents a paradox that deserves serious consideration.

Countrywide spread of community- and hospital-acquired extended-spectrum beta-lactamase (CTX-M-15)-producing Enterobacteriaceae in Lebanon.

A prospective study was carried out to assess the extent of carriage of extended-spectrum beta-lactamase (ESBL)-producing Enterobacteriaceae at both hospital and community levels in Lebanon. A total of 1,442 fecal samples were collected from hospital-based patients and 58 from health care workers of six Lebanese tertiary care general hospitals located in different areas of Lebanon between January and March 2003. A total of 382 fecal samples were also collected from healthy subjects between April and June 2003. The samples analysis led to the identification of 118 strains as ESBL producers based on the synergistic effects between clavulanate and selected beta-lactams (ceftazidime and cefotaxime). These strains were isolated from 72 subjects: 61 patients, 2 health care workers, and 9 healthy subjects. One representative strain per subject was selected, and a total of 72 nonduplicate ESBL producers, including a high majority of Escherichia coli (n = 56), Klebsiella pneumoniae (n = 9), Enterobacter cloacae (n = 6), and Citrobacter freundii (n = 1), were characterized. The molecular analysis revealed that the majority of the strains (83%) express CTX-M-15 ESBL (pI 8.6). SHV-5a ESBL (pI 8.2) was produced by 18% of the strains. DNA macrorestriction analysis of ESBL-producing E. coli presented 38 different genotypes, revealing the absence of clonal link among these strains. In addition to the fact that the present study highlights the emergence and the countrywide dissemination of CTX-M-15-producing E. coli in Lebanon, it represents the first report of an SHV-5a-producing C. freundii.