Adrenergic beta-Antagonists/adverse effects; Blood Pressure/drug effects; Diabetes Mellitus/prevention & control; Hypertension/drug therapy; Thiazides/adverse effects; Adrenergic beta-Antagonists/therapeutic use; Aminobutyrates/pharmacology; Aminobutyrates/therapeutic use; Angiotensin Receptor Antagonists/pharmacology; Angiotensin Receptor Antagonists/therapeutic use; Angiotensin-Converting Enzyme Inhibitors/pharmacology; Angiotensin-Converting Enzyme Inhibitors/therapeutic use; Animals; Biphenyl Compounds/pharmacology; Biphenyl Compounds/therapeutic use; COVID-19/diagnosis; COVID-19/epidemiology; COVID-19/therapy; COVID-19/virology; Calcium Channel Blockers/adverse effects; Calcium Channel Blockers/therapeutic use; Cats; Diabetes Mellitus/etiology; Diabetes Mellitus, Type 2/drug therapy; Dogs; Drug Combinations; Gastric Inhibitory Polypeptide/adverse effects; Gastric Inhibitory Polypeptide/pharmacology; Gastric Inhibitory Polypeptide/therapeutic use; Heart Sounds/physiology; History, 20th Century; Humans; Hypertension/complications; Immunization, Passive/methods; Immunization, Passive/statistics & numerical data; Incretins/adverse effects; Incretins/pharmacology; Incretins/therapeutic use; Insulin Glargine/adverse effects; Insulin Glargine/history; Insulin Glargine/pharmacology; Insulin Glargine/therapeutic use; Meta-Analysis as Topic; Randomized Controlled Trials as Topic; SARS-CoV-2/genetics; Thiazides/therapeutic use; Valsartan/pharmacology; Valsartan/therapeutic use; COVID-19 Serotherapy