Table 16.

LDA topics, keywords and discussion topics.

Topic Extracted Using LDA	Keywords Included	Discussion Topic
Topic 1	year, mrna, develop, cure, research, test, hiv, cancer	Mistrust
Topic 2	hoax, lie, fake, control, kill, bill, lockdown, wear_mask, evil, money, believe	Scam
Topic 3	test, risk, trial, die, old, child, death, woman, result, safe, false, cause, clinical_trial	Side effects
Topic 4	big, pharma, hell, big_pharma, conspiracy, trust, needle, inject, president, government, fake, million	Scam
Topic 5	dose, pfizer, science, fda, moderna, biontech, experiment, article, work, trust, protection, research	Hiding relevant information
Topic 6	refuse, worker, health, care, government, healthcare, hospital, nurse, trust, nhs, doctor, medical	Mistrust
Topic 7	flu, new, strain, rate, mutate, chance, effective, mutation, survival, new_strain, survival_rate, efficacy	Inefficiency
Topic 8	immunity, public, health, heard, heard_immunity, experimental, natural, harm, immune	Existence of alternatives
Topic 9	effect, long, spread, long_term, transmission, term, infertility, sterilization, autoimune	Side effects
Topic 10	dangerous, mandatory, force, right, refuse, mandate, choice, school, mask, travel, body, cdc, isolate	Freedom
Topic 11	treatment, safe, effective, dose, ivermectin, solution, safe_effective, fraudently_discredit, safety, prevent	Existence of alternatives
Topic 12	reaction, pig, guinea, allergic, guinea_pig, severe, allergic_reaction, allergy, kill, adverse, adverse_action, danger, human_guinea	Side effects, Mistrust