Table 1. Pre-pandemic topics and collocates.

Treatment and Prevention	drug, treatment, medical, immunization, cure, treat, diagnose, prevent, patient, therapy, vaccine
Infectious Diseases	outbreak, infectious, virus, bacteria, infect, transmit, risk, contagious, spread, control
Public Health Initiatives	public, awareness, preventable, legislation, concern, tackle, ministry, response, raise, coalition
Chronic Conditions	diabetes, stroke, cancer, dementia, disease, chronic, cardiovascular, coronary, pulmonary, heart, lung, liver, kidney