Herd Immunity against Severe Acute Respiratory Syndrome Coronavirus 2 Infection in 10 Communities, Qatar.

We investigated what proportion of the population acquired severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and whether the herd immunity threshold has been reached in 10 communities in Qatar. The study included 4,970 participants during June 21-September 9, 2020. Antibodies against SARS-CoV-2 were detected by using an electrochemiluminescence immunoassay. Seropositivity ranged from 54.9% (95% CI 50.2%-59.4%) to 83.8% (95% CI 79.1%-87.7%) across communities and showed a pooled mean of 66.1% (95% CI 61.5%-70.6%). A range of other epidemiologic measures indicated that active infection is rare, with limited if any sustainable infection transmission for clusters to occur. Only 5 infections were ever severe and 1 was critical in these young communities; infection severity rate of 0.2% (95% CI 0.1%-0.4%). Specific communities in Qatar have or nearly reached herd immunity for SARS-CoV-2 infection: 65%-70% of the population has been infected

Epidemiology and Outcome of Ventilator-Associated Pneumonia in a Heterogeneous ICU Population in Qatar

Objective. The purpose of this study is to collect data on epidemiology, microbiology, and outcome of VAP in our ICUs for reevaluation of the therapeutic strategies. Methods. This retrospective study involved all adult patients, 15 years of age or older, diagnosed with VAP in multidisciplinary ICUs at Hamad General Hospital between January 2010 and December 2012. Results. A total of 106 patients were enrolled. The mean incidence of VAP was 5.0 per 1000 ventilator-days. It was predominant among younger age group (<60 years), male patients (80.2%), and trauma ICU admissions (49.0%). The most common comorbidity was hypertension (34%) and polytrauma (36.8%) was the most frequent admission diagnosis. 30-day mortality was 23.6% and it was significantly higher in ≥60 years age group, female gender, patients with diabetes mellitus, hypertension, chronic respiratory disease, ≥1 comorbidity, and poor functional status, smokers, medical and surgical ICU admissions, and patients with previous stay in medical/surgical wards, inappropriate empirical therapy, and admission diagnosis of respiratory failure. Gram-negative bacilli were the most frequent respiratory specimen isolates, Pseudomonas spp. being the most common. Majority of our Acinetobacter isolates were multidrug resistant. Conclusion. The incidence of VAP in our ICUs was low. Higher mortality rates were observed in certain subgroup of patients. Resistance to commonly used antimicrobials is likely to require reevaluation of the therapeutic strategies at our institution

Group A streptococcus toxic shock syndrome: an outbreak report and review of the literature

Group A Streptococcal (GAS) Toxic Shock Syndrome (TSS) is an acute, rapidly progressive, and often fatal illness. Outbreaks can occur in hospitals. However, early infection control measures may interrupt transmissions and prevent morbidity and mortality.Two cases of invasive GAS TSS were diagnosed within 48. h after two uncomplicated laparoscopic surgeries that were performed in the same operating room of a women's hospital.Investigations conducted by the infection prevention and control department of the hospital identified 46 obstetrical staff members who were involved in the surgeries and/or had contact with either of the patients. All of the staff members were interviewed regarding any recent history of upper respiratory tract infections, the presence of skin lesions and vaginal or rectal symptoms. Throat, rectal, and vaginal cultures were obtained two times from all of the involved staff members. Throat colonization with GAS was detected in the cultures from one obstetrical intern who attended the 1st surgery and from one nurse who had formerly worked in the postnatal ward. These two strains were epidemiologically different from each other and from the outbreak strain. Both carriers were suspended from direct patient care and were treated with a ten-day course of oral clindamycin. The success of their decolonization status was assessed at the end of therapy and at three, six, nine and twelve months thereafter before reassigning them to routine work.Unfortunately, in spite of the extensive investigation of all involved personnel and of the environment, the mode of transmission to the second patient could not be established. However, droplet or airborne transmission could not be ruled out.Early and meticulous implementation of infection control measures was crucial and instrumental in the successful management and control of this outbreak. Furthermore, there were no subsequent GAS cases detected during the 24 months following the outbreak

Mapping of infection prevention and control education and training in some countries of the World Health Organization’s Eastern Mediterranean Region: current situation and future needs

Abstract Background A strong understanding of infection prevention and control (IPC) procedures and comprehensive training among healthcare workers is essential for effective IPC programs. These elements play a crucial role in breaking the chain of nosocomial infections by preventing the transmission of resistant organisms to patients and staff members. This study mapped the components of IPC education and training across various member states of the World Health Organization (WHO) in the Eastern Mediterranean Region (EMR) at national, academic, and healthcare institutional levels. Methods A self-administered structured online questionnaire based on the WHO “Core Component 3” of IPC programs at the national and acute healthcare facility levels (IPC education and training) was given to national IPC focal persons in each of the WHO’s EMR countries between February and March 2023. Results From 14 of the 22 countries,15 IPC persons participated in the survey. Most countries have scattered nonhomogeneous IPC education programs in human health undergraduate majors without considering it a standalone module. Academic institutions are rarely involved, and elaborate and predefined undergraduate IPC education programs provided by universities are present in 21.4% of the countries. In 71.4% of these countries, postgraduate training targeting IPC professionals is provided by national IPC teams, primarily based on national IPC guidelines developed with the aid of the WHO. Generally, healthcare worker training relies heavily on healthcare facilities in 92.9% of the countries, rather than on a national training program. In 42.9% of the countries, practicing IPC physicians are not necessarily specialists of infectious disease or medical microbiologists and IPC nurses are not required to specialize in IPC. However, nonspecialized IPC professionals are expected to undergo training upon employment and before beginning practice. Nongovernmental organizations such as the WHO play a significant role in IPC education and in supporting national IPC authorities in establishing national IPC guidelines, as it is the case in 78.6% of these countries. Conclusion Clear disparities exist in IPC education and training across different countries in the WHO’s EMR. Establishing a regional scientific network specializing in IPC would help bridge the existing gaps and standardize this education within individual countries and across countries in the region. This region needs to establish IPC certification standards and standardized education curricula

<b>Supplemental Material - Outbreak of <i>Pseudomonas aeruginosa</i> on a neonatal intensive care unit: Lessons from a Qatari setting</b>

Supplemental Material for Outbreak of Pseudomonas aeruginosa on a neonatal intensive care unit: Lessons from a Qatari setting by Hawabibee Mahir Petkar, Imelda Caseres-Chiuco, Afaf Al-Shaddad, Mahmoud Mohamed, Irshad Ahmed, Rosemary Rao, Roderic Perdon, Moneir Elhaj, Lajish Latheef5, Bonnie George, Eman Mustafa, Jameela Al-Ajmi and Huda Saleh in Journal of Infection Prevention.</p

SARS-CoV-2 infection in 3,241 School working staffs: Impact of SARS CoV-2 variants of concern [Wild, B.1.1.7 and Omicron].

BackgroundThere is debate over whether physical attendance at school affects the spread of the SARS-CoV-2 pandemic.MethodsA cohort of personnel from several schools in Qatar provided nasopharyngeal swabs (NPS) for SARS-CoV-2 RT-PCR and rapid antigen testing. Each of them was monitored for infection until February 2022.ResultsIn total, 3,241 employees gave samples for analysis. Prior to the start of the 2020-2021 academic year (Group I), 3.49% of samples tested positive for SARS-CoV-2. Most of the positive PCR results were from male, senior, non-teaching staff members. Only 110 (3.39%) employees who had enrolled in face-to-face instruction before the B.1.1.7 variant's emergence (Group II), 238 (7.34%) after the B.1.1.7 variant's emergence (Group III), and 410 (12.65%) after the introduction of the Omicron variant (Group IV) had reported infection by PCR test. Most people who tested positive by PCR after enrolling in school were young, female teachers. In the Cox Proportional-Hazards Model, exposure to a confirmed case, the presence of symptoms in the two weeks prior to exposure in all groups-young age in Groups II and III, male gender in Groups I and IV, shared housing in Group III, and the presence of comorbidities in Groups II and III independently predicted SARS-CoV-2 infection in school staff.ConclusionCritical information about the risk of SARS-CoV-2 infection in school workers during the whole pandemic is provided by our study. School operations in Qatar were made safer through initial and ongoing screenings, as well as widespread vaccination of school personnel