Summary Background Scientific evidence suggests that dromedary camels are the intermediary host for the Middle East respiratory syndrome coronavirus (MERS-CoV). However, the actual number of ...infections in people who have had contact with camels is unknown and most index patients cannot recall any such contact. We aimed to do a nationwide serosurvey in Saudi Arabia to establish the prevalence of MERS-CoV antibodies, both in the general population and in populations of individuals who have maximum exposure to camels. Methods In the cross-sectional serosurvey, we tested human serum samples obtained from healthy individuals older than 15 years who attended primary health-care centres or participated in a national burden-of-disease study in all 13 provinces of Saudi Arabia. Additionally, we tested serum samples from shepherds and abattoir workers with occupational exposure to camels. Samples were screened by recombinant ELISA and MERS-CoV seropositivity was confirmed by recombinant immunofluorescence and plaque reduction neutralisation tests. We used two-tailed Mann Whitney U exact tests, χ2 , and Fisher's exact tests to analyse the data. Findings Between Dec 1, 2012, and Dec 1, 2013, we obtained individual serum samples from 10 009 individuals. Anti-MERS-CoV antibodies were confirmed in 15 (0·15%; 95% CI 0·09–0·24) of 10 009 people in six of the 13 provinces. The mean age of seropositive individuals was significantly younger than that of patients with reported, laboratory-confirmed, primary Middle Eastern respiratory syndrome (43·5 years SD 17·3 vs 53·8 years 17·5; p=0·008). Men had a higher antibody prevalence than did women (11 0·25% of 4341 vs two 0·05% of 4378; p=0·028) and antibody prevalence was significantly higher in central versus coastal provinces (14 0·26% of 5479 vs one 0·02% of 4529; p=0·003). Compared with the general population, seroprevalence of MERS-CoV antibodies was significantly increased by 15 times in shepherds (two 2·3% of 87, p=0·0004) and by 23 times in slaughterhouse workers (five 3·6% of 140; p<0·0001). Interpretation Seroprevalence of MERS-CoV antibodies was significantly higher in camel-exposed individuals than in the general population. By simple multiplication, a projected 44 951 (95% CI 26 971–71 922) individuals older than 15 years might be seropositive for MERS-CoV in Saudi Arabia. These individuals might be the source of infection for patients with confirmed MERS who had no previous exposure to camels. Funding European Union, German Centre for Infection Research, Federal Ministry of Education and Research, German Research Council, and Ministry of Health of Saudi Arabia.
A novel coronavirus (MERS-CoV) is causing severe disease in the Middle East. In this report on a hospital outbreak of MERS-CoV infection, 23 confirmed cases and evidence of person-to-person ...transmission were identified. The median incubation period was 5.2 days.
Respiratory viruses are an emerging threat to global health security and have led to worldwide epidemics with substantial morbidity, mortality, and economic consequences. Since the severe acute respiratory syndrome (SARS) pandemic in 2003–2004,
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two additional human coronaviruses — HKU-1 and NL-63 — have been identified, both of which cause mild respiratory infection and are distributed worldwide.
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In September 2012, the World Health Organization (WHO) reported two cases of severe community-acquired pneumonia caused by a novel human β-coronavirus, subsequently named the Middle East respiratory syndrome coronavirus (MERS-CoV).
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Since then, MERS-CoV has been identified as the cause of pneumonia . . .
Background Severe complications from COVID-19 and poor responses to SARS-CoV-2 vaccination were commonly reported in cancer patients compared to those without cancer. Therefore, the identification of ...predisposing factors to SARS-CoV-2 infection in cancer patients would assist in the prevention of COVID-19 and improve vaccination strategies. The literature lacks reports on this topic from the Kingdom of Saudi Arabia (KSA). Therefore, we studied clinical and laboratory data of 139 cancer patients from King Abdulaziz Medical City, Riyadh, KSA. Methods The cancer patients fall into three categories; (i) uninfected with SARS-CoV-2 pre-vaccination and remained uninfected post-vaccination (control group; n = 114; 81%), (ii) pre-vaccination infected group (n = 16; 11%), or (iii) post-vaccination infected group (n = 9; 6%). Next, the clinical and lab data of the three groups of patients were investigated. Results Comorbidity factors like diabetes and hemodialysis were associated with the risk of infection in cancer patients before the vaccination (p<0.05). In contrast to breast cancer, papillary thyroid cancer was more prevalent in the infected patients pre- and post-vaccination (p<0.05). Pre-vaccination infected group had earlier cancer stages compared with the control group (p = 0.01). On the other hand, combined therapy was less commonly administrated to the infected groups versus the control group (p<0.05). Neutrophil to lymphocyte ratio was lower in the post-vaccination infected group compared to the control group (p = 0.01). Conclusion Collectively, this is the first study from KSA to report potential risk factors of SARS-CoV-2 infection in cancer patients pre- and post-vaccination. Further investigations on these risk factors in a larger cohort are worthwhile to draw a definitive conclusion about their roles in predisposing cancer patients to the infection.
Celotno besedilo
Dostopno za:
DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
Summary Background Middle East respiratory syndrome (MERS) is a new human disease caused by a novel coronavirus (CoV). Clinical data on MERS-CoV infections are scarce. We report epidemiological, ...demographic, clinical, and laboratory characteristics of 47 cases of MERS-CoV infections, identify knowledge gaps, and define research priorities. Methods We abstracted and analysed epidemiological, demographic, clinical, and laboratory data from confirmed cases of sporadic, household, community, and health-care-associated MERS-CoV infections reported from Saudi Arabia between Sept 1, 2012, and June 15, 2013. Cases were confirmed as having MERS-CoV by real-time RT-PCR. Findings 47 individuals (46 adults, one child) with laboratory-confirmed MERS-CoV disease were identified; 36 (77%) were male (male:female ratio 3·3:1). 28 patients died, a 60% case-fatality rate. The case-fatality rate rose with increasing age. Only two of the 47 cases were previously healthy; most patients (45 96%) had underlying comorbid medical disorders, including diabetes (32 68%), hypertension (16 34%), chronic cardiac disease (13 28%), and chronic renal disease (23 49%). Common symptoms at presentation were fever (46 98%), fever with chills or rigors (41 87%), cough (39 83%), shortness of breath (34 72%), and myalgia (15 32%). Gastrointestinal symptoms were also frequent, including diarrhoea (12 26%), vomiting (ten 21%), and abdominal pain (eight 17%). All patients had abnormal findings on chest radiography, ranging from subtle to extensive unilateral and bilateral abnormalities. Laboratory analyses showed raised concentrations of lactate dehydrogenase (23 49%) and aspartate aminotransferase (seven 15%) and thrombocytopenia (17 36%) and lymphopenia (16 34%). Interpretation Disease caused by MERS-CoV presents with a wide range of clinical manifestations and is associated with substantial mortality in admitted patients who have medical comorbidities. Major gaps in our knowledge of the epidemiology, community prevalence, and clinical spectrum of infection and disease need urgent definition. Funding None.
The global battle to contain the novel coronavirus disease 2019 (COVID-19) pandemic rages on. Previous studies described the clinical characteristics of COVID-19, but knowledge gaps remain in the ...Middle East region. Identifying these features will help in mapping the disease and guiding pandemic management. A multi-center, retrospective cross-sectional study was initiated to describe the demographic data, clinical characteristics, and outcomes of COVID-19 cases across all the regions of Saudi Arabia.
The analysis included all laboratory-confirmed positive COVID-19 patients from the 1st of March 2020 to 31st of March 2020 across all regions of Saudi Arabia. Demographic data, clinical characteristics, incubation periods, laboratory findings, and patient outcomes data were retrieved from 1519 cases in the Health Electronic Surveillance Network Database.
The median age was 36 years and 54.3% (n = 825) of the patients were men. Patients working in health care facilities represented 12.5% of the cases (n = 190) and 9.3% of cases were asymptomatic. The median incubation period was 6 days. The most common symptoms were cough (89.4%), fever (85.6%), and sore throat (81.6%); 20.1% of the patients had underlying comorbidities. Hypertension was seen in 8.8% and diabetes in 7.6% of all the cases. The percentage of cases with temperatures >38֯C was 20.3% (n = 129), and 1.6% of patients had heart rates ≥125 beats/min and 4.7% of them had respiratory rates of >24 breaths/min. Lymphocytopenia occurred in 37.5% of cases. Overall, 71.6% of patients were admitted to hospitals and 4.7% required ICU treatment. We could not completely assess the clinical courses or final outcomes of COVID-19 patients.
In this multi-center retrospective study, fever and cough were common symptoms. Special attention should be addressed toward asymptomatic carriers and workers in health care facilities as they play a key role in disease transmission.
Background Epistaxis is one of the most common ear, nose, and throat (ENT) emergencies that present to the emergency or primary care centers. Study aim This study aimed to assess the knowledge of the ...Saudi general public toward epistaxis. Methods This study adopted a cross-sectional analytical study design. The questionnaire link was distributed using social media channels. The participants were adult Saudi nationals that live in Saudi Arabia. The data was collected using a self-administered questionnaire that assessed knowledge related to epistaxis. The knowledge score was calculated using the 10 knowledge evaluation questions. Each correct response was assigned a value of “one.” The scores ranged from “zero” to “ten,” with higher scores signifying greater knowledge. A percentage score was computed, and the participants’ knowledge was classified as poor (% score: ≤50%), moderate (% score: 51 to 70%), and good (% score: 71 to 100%). Statistical Package for Social Sciences (SPSS) version 26 was used for statistical analysis. Results The study included 452 participants of whom 70.1% were females. Married individuals comprised 60.8% of the sample. The prevalence of self-reported epistaxis was 43.6% in the last 6 months. Among the participants, 42.9%, had “Poor” knowledge score, followed by 39.6% who had “moderate” score, and 17.5% had “Good” score. These results show that most participants had poor to moderate knowledge, with a minority demonstrating a good level of knowledge. All demographic variables have significantly influenced the adequacy of knowledge about epistaxis. Furthermore, participants who believed that the general public has insufficient knowledge on epistaxis had a significantly lower knowledge score ( p = 0.001). Conclusion The present study found a non-satisfactory, low-to-moderate knowledge level of the Saudi general public toward epistaxis. We propose emphasizing public knowledge and education about first aid for epistaxis because proper first aid can minimize significant complications when done properly.
MERS coronavirus has recently emerged as a pathogen causing severe infection in humans. In a report from Saudi Arabia, mild infection in health care workers caring for infected patients is identified ...through a screening program. Implications for infection control are discussed.
To the Editor:
A majority of the 94 cases of Middle East respiratory syndrome coronavirus (MERS-CoV) infection that have been reported to date have occurred in Saudi Arabia. Patients with this infection have presented with serious respiratory disease and have required hospitalization.
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However, there have been case reports of less severe disease within family
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clusters, and the clinical spectrum of MERS-CoV infections may extend to asymptomatic and subclinical cases. Therefore, the epidemiologic and clinical characteristics of this infection need further definition. The patterns of the spread of MERs-CoV among family
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Transmission of MERS-Coronavirus in Household Contacts Drosten, Christian; Meyer, Benjamin; Müller, Marcel A ...
New England journal of medicine/The New England journal of medicine,
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Journal Article
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Odprti dostop
Defining transmission dynamics of the Middle East respiratory syndrome coronavirus (MERS-CoV) is important for public health measures. In this report, potential transmission to household contacts of ...26 index patients with MERS-CoV infection is investigated.
The Middle East respiratory syndrome coronavirus (MERS-CoV) was first isolated in 2012 from a patient with fatal pneumonia in Jeddah, Saudi Arabia.
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From 2012 through July 2014, at least 834 laboratory-confirmed cases of MERS-CoV infection associated mostly with respiratory tract illness were reported to the World Health Organization; of these cases, 288 were fatal. Known cases have been directly or indirectly linked to countries in the Arabian peninsula.
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The epidemiologic features of MERS remain poorly defined. Studies that have modeled the reproductive rate of MERS-CoV in humans have been based on notified, clinically apparent cases and auxiliary measurements, such as . . .
Diabetes mellitus and hypertension are recognized risk factors for severe clinical outcomes, including death, associated with Middle East respiratory syndrome coronavirus infection. Among 32 ...virus-infected patients in Saudi Arabia, severity of illness and frequency of death corresponded closely with presence of multiple and more severe underlying conditions.
Celotno besedilo
Dostopno za:
DOBA, IZUM, KILJ, NUK, ODKLJ, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
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