The present study supports the hypothesis that allopurinol is associated with a reduced risk of non-fatal AMI, which seems to be dose-dependent and duration-dependent.

To evaluate the incidence of certain symptoms in a population of health workers exposed to coronavirus disease 2019 patients. Study Design: Case-control study. Methods: The study was conducted at a tertiary care hospital from March 1 to April 7, 2020. Health workers with suspected coronavirus disease 2019 (COVID-19) infection were included. The presence of COVID-19 was detected by using real-time polymerase chain reaction (RT-PCR) methods. Positive and negative RT-PCR patients were used as case and control groups, respectively. This study analyzed the incidence of COVID-19 symptoms in both patient groups. Visual analog scales were used for selfassessment of smell and taste disorders, ranging from 0 (no perception) to 10 (excellent perception). Results: There were 215 (60.6%) patients with positive RT-PCR and 140 (39.4%) patients with negative RT-PCR. The presence of symptoms such as hyposmia hypogeusia, dysthermia, and cough were strongly associated with a positive RT-PCR. The association of cough and subjective hyposmia had 5.46 times higher odds of having a positive test. The receiver operating characteristic (ROC) analysis showed that a fever higher than 37.45 C resulted in sensitivity and specificity of 0.65 and 0.61, respectively. A total of 138 cases (64.1%) and 114 cases (53%) had subjective hyposmia and hypogeusia, respectively. The 85.4% of these patients recovered olfactory function within the first 14 days of the onset of the symptoms. Conclusion: There is a significant association between positive RT-PCR and subjective hyposmia. The association of subjective hyposmia and cough increase significantly the odds of having a positive RT-PCR. The measurement of fever as the only method for screening of COVID-19 infection resulted in a poor association.

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