Anti-SARS-CoV-2 Antibody Response Among Spectators of Amir Cup 2020 With a History of Recovery From COVID-19 in Qatar: A Historic Cohort Study.

Aim The aim of the study is to describe the antibody response after COVID-19 infection and assess its effectiveness against reinfection. Background COVID-19 has recently emerged as a contagious infectious disease caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2). This infection is followed by a humoral immune antibody response, which may remain in the blood for a number of weeks. Studies have shown that antibodies protect against reinfection for at least seven months. The current study is aimed at investigating the persistence of circulating SARS-CoV-2 antibodies after COVID-19 infection and its behavior over 18 months of follow-up period, in addition to assessing the risk of reinfection of COVID-19 in unvaccinated individuals. Methodology A longitudinal historical cohort study of 3378 COVID-19 recovered individuals in connection with the Amir Cup football tournament held in Qatar, in December 2020 was analyzed. The health records of study participants were followed for a maximum of 18 months after serology testing or until the first dose of COVID-19 vaccination to detect any evidence of recurrent infection. Results The study found a statistically significant association between recurrence risk and the duration of risk exposure since the first COVID-19 episode. Compared to those with the lowest risk of exposure to reinfection (shortest duration after first infection) those beyond 299 days of at-risk exposure since the first episode, have a 51-fold higher risk of developing recurrent COVID-19. Conclusion Immunity developed after primary infection with SARS-CoV-2 may protect against reinfection from subsequent exposure to the virus in seropositive individuals up to nine months post-infection.

Motivators and barriers of seasonal influenza vaccination among primary health care physicians in Qatar.

Annual influenza vaccination is an effective way to reduce the burden of disease throughout the year. A cross-sectional study was conducted in primary healthcare centres in Qatar to determine vaccination coverage among physicians, motivators, and barriers. The vaccination rate was higher among physicians aged 45 years and above (p-value < 0.005). Most primary care physicians (95 %) strongly agree that being vaccinated reduces the risk of disease spread. The most frequently mentioned barriers were the belief that one could still get influenza after being vaccinated and the fear of side effects (92.6 % and 29.5 %, respectively). Health authorities can implement strategies that take these factors into account to increase immunization coverage.

Assessment of knowledge, attitude, and practice of primary healthcare physicians in Qatar towards hypertension management: An online cross-sectional study.

Primary health care is integral to diagnosing and managing hypertension. This study aimed to assess the knowledge, attitude, practice, priority, and confidence of primary care physicians in Qatar toward hypertension diagnosis and management, and to measure the determinants of good knowledge, desirable attitudes, and desirable practices. We conducted a cross-sectional web-based survey using a modified version of the World Hypertension League Questionnaire during the period from August 30th to October 23rd, 2020. All primary care physicians working in any of Qatar's 27 publicly run primary healthcare centers were invited to participate in the survey. Out of the 450 primary care physicians working at that time, 197 completed the study questionnaire with a response rate of 43.8%. Most respondents stated that they followed local or international treatment guidelines for hypertension management (96.4%). Primary care physicians were highly confident and prioritized hypertension management. The overall desirable practice score was 73.8%, with the highest score (95.4%) for assessing adherence to antihypertensive medications, whereas the lowest desirable practice score was 33.5% for counseling on home blood pressure monitoring. Fifty-one-point eight percentage and 62.4% correctly identified 140 mm Hg and 90 mm Hg as the systolic and diastolic blood pressure threshold for diagnosing hypertension in most patients. The lowest knowledge scores were for hypertension epidemiology in Qatar and recommended dietary modification for hypertensive patients. Respondents had positive attitudes toward task sharing with nonphysician healthcare workers for most items (58.9%-78.2%), except for drug prescriptions (30.5%). Primary care physicians in Qatar had positive attitudes, with high overall confidence and conviction (priority) scores toward hypertension. However, their knowledge scores and certain practices were suboptimal. Healthcare policymakers in Qatar should raise primary care physicians awareness of the current burden of untreated hypertension in the country by organizing targeted educational programs and emphasizing the importance of following national clinical practice guidelines in the diagnosis and management of hypertension.

Spectrum of COVID-19 clinical characteristics among patients presenting to the primary healthcare in Qatar during the early stages of the pandemic: a retrospective multicentre cross-sectional study.

OBJECTIVES: To describe clinical characteristics and laboratory investigations of patients with COVID-19 diagnosed in primary care in Qatar and to assess predictors of hospitalisation. DESIGN: A retrospective cross-sectional study. SETTING AND PARTICIPANTS: 3515 confirmed patients with COVID-19 diagnosed in any of the 27 primary healthcare centres in Qatar between 9 April 2020 and 30 June 2020. MAIN OUTCOME MEASURES: Demographic characteristics, comorbidities, contact tracing, clinical and laboratory data, in addition to patient disposition at the time of diagnosis RESULTS: Mean age of patients was 35.5 years (±14.7). 2285 patients (65.0%) were males, 961 patients (27.3%) had a history of concomitant comorbidity and 640 patients (18.2%) were asymptomatic. Adult patients (19-64 years old) were more likely to report symptoms than children or elderly. Fever and cough were the most frequently documented symptoms affecting 1874 patients (46.7%) and 1318 patients (37.5%), respectively. Most patients had normal vital signs at presentation; however, patients who were subsequently hospitalised had higher median temperature than non-hospitalised patients (37.7°C, IQR: 37.0°C-38.4°C, and 37.2°C, IQR: 36.8°C-37.8°C, respectively). Hospitalised patients had significantly higher C reactive protein (CRP) (median CRP: 20 mg/L, IQR: 5.0-61.2 mg/L) than non-hospitalised patients (median CRP: 4.6 mg/L, IQR: 1.7-11.50 mg/L), and lower median absolute lymphocyte count (1.5×103/µL, IQR: 1.1×103/µL-2.1×103/µL, and 1.8×103/µL, IQR: 1.3×103/µL-2.4×103/µL, respectively). Predictors of hospitalisation were increasing age (adjusted OR (AOR): 2.614, 95% CI 1.281 to 5.332 for age between 50 years and 64 years, and AOR: 3.892, 95% CI 1.646 to 9.204 for age ≥65 years), presence of two or more comorbidities (AOR: 2.628; 95% CI 1.802 to 3.832) and presence of symptoms (AOR: 1.982: 95% CI 1.342 to 2.928). CONCLUSION: The majority of COVID-19 cases diagnosed in primary healthcare in Qatar were symptomatic. Most cases had normal vital signs and laboratory results at presentation. Predictors of hospitalisation were increasing age, the presence of symptoms and having two or more comorbidities.

Primary health care physicians' perspective on COVID-19 pandemic management in Qatar: a web-based survey.

OBJECTIVES: To assess primary care physicians' satisfaction towards COVID-19 pandemic management in Qatar and to identify the associated factors with their satisfaction. DESIGN: A cross-sectional web-based survey conducted from 1 June to 30 July 2020. SETTING: All the 27 public primary healthcare centres in Qatar. PARTICIPANTS: 294 primary care physicians working in the publicly run primary healthcare corporation in Qatar. PRIMARY OUTCOME MEASURES: Overall satisfaction towards COVID-19 management in Qatar and satisfaction towards each aspect of this management including COVID-19 clinical practice guidelines, psychological support, team dynamics, work safety as well as institutional and governmental regulations. RESULTS: 294 primary care physicians participated in the survey with a response rate of 65%. Overall satisfaction of physicians towards COVID-19 19 management at Primary Health Care Corporation was 77%. The highest satisfaction was towards institutional and governmental support while it was the lowest towards the corporation case definition and management of COVID-19 guidelines. Female physicians were less satisfied with psychological support in comparison to males (64.1% and 51% respectively, p=0.049). Overall satisfaction towards case definition and management of COVID-19 guidelines were strongly correlated with their clarity, updating these guidelines in due time and applicability of the guidelines (r=0.759 P<0.001; r=0.701 P<0.001; r=0.698 P<0.001) respectively, while satisfaction towards work safety was strongly correlated with availability and quality of Personal Protective Equipment provided (r=0.83 P<0.001 and r=0.811 P<0.001 respectively). CONCLUSION: Most primary care physicians in Qatar who responded to the survey were satisfied with the COVID-19 guidelines developed rapidly in response to this pandemic. Availability and quality of PPE were a particular concern. The clinicians who were less satisfied were younger and female.

A case of probable piperacillin/tazobactam-induced bone marrow suppression in a pregnant woman.

Piperacillin/tazobactam is a bacteriolytic combined antibiotic. The least common reported adverse reactions of piperacillin/tazobactam are haematological reactions (<1%). The use of piperacillin/tazobactam during pregnancy is considered to be moderately safe (pregnancy category B) for the human embryo-foetus. This is a case of a pregnant patient (22 weeks of gestation) who was admitted to the Women's Hospital, Doha, Qatar and was treated for preterm premature rupture of membrane with erythromycin for 10 days. Afterwards, she was treated with piperacillin/tazobactam for asymptomatic urinary tract infection (pseudomonas species). After 15 days, she developed fever, leucopenia, neutropenia and thrombocytopenia. These adverse reactions were reversed after the discontinuation of piperacillin/tazobactam combination. In Qatar and worldwide, there are few reported cases regarding bone marrow suppression or fever induced by piperacillin/tazobactam in general and during pregnancy. Using the Naranjo Adverse Drug Reaction Probability scales, the score was found to be 8, representing a probable adverse drug reaction.