“…Some of the risk factors for the probability of contracting COVID-19 identified in previous studies include sex [ 4 , 5 , 6 , 7 , 8 ], age [ 6 , 7 , 8 , 9 ], higher body mass index (BMI) [ 4 , 6 , 8 ], higher glycated hemoglobin levels associated with diabetes [ 4 , 8 ], smoking [ 4 , 8 ], and use of blood pressure medications associated with hypertension [ 4 , 5 , 8 , 10 ]. Information about risk factors for the flu and other common respiratory diseases is available from government agencies like the Centers for Disease Control and Prevention (CDC) [ 2 ] and scientific research, where age [ 11 , 12 , 13 , 14 ], chronic medical conditions (chronic obstructive pulmonary disease (COPD) [ 15 ], diabetes mellitus [ 13 ], cardiovascular disease [ 13 ], asthma [ 16 , 17 ], obesity [ 11 , 12 , 18 , 19 , 20 , 21 ]), sex [ 11 , 13 , 15 , 16 ], smoking [ 12 , 18 , 22 , 23 ], being a part of the nursing personnel, a nurse, or a doctor [ 24 , 25 ], and others are identified as risk factors for RTIs, but it is unknown if the risk factors for RTIs before the COVID-19 pandemi...…”