Table 1.

Types of COVID-19 vaccine–related search queries.

Category	Definition	Associated terms	Examples of specific queries
Availability	Query that included a term or phrase identifying locations where or time when COVID-19 vaccines might be available	Names of US states, counties, or cities, names of organizations or specific locations that provide COVID-19 vaccines (eg, pharmacies, hospitals or health systems, vaccination sites), when or where to get COVID-19 vaccines	“ny covid vaccine”, “covid vaccine california”, “florida covid vaccine”, “covid vaccine near me”, “where to get covid vaccine”, “cvs covid vaccine”, “covid vaccine rite-aid”, “covid vaccine appointment”, “when can I get covid vaccine”
Maker or manufacturer	Query that included the name of a COVID-19 vaccine maker or manufacturer	Names of different COVID-19 vaccines, names of companies or organizations that developed or manufactured different vaccines	“pfizer vaccine”, “moderna vaccine”, “johnson vaccine”, “j&j vaccine”
Side effects or safety	Query that included general or specific terms associated with side effects or safety of COVID-19 vaccines	Side effects, safety, specific vaccine-related worries and concerns	“covid vaccine side effects”, “covid vaccine safety”, “reaction to covid vaccine”, “pregnant women covid vaccine”, “covid vaccine blood clot”, “problems with covid vaccine”, “covid vaccine fever”, “covid vaccine allergy”
Myths or conspiracies	Query that included general or specific terms associated with COVID-19 vaccine myths or conspiracy beliefs	Specific myths or conspiracy beliefs	“covid vaccine infertility”, “does covid vaccine change dna”, “covid vaccine microchip”, “can I get covid from vaccine”, “covid vaccine 5G”
General or other	Query related to COVID-19 vaccine that included no additional terms or terms not associated with any of the above categories	COVID-19 vaccine or vaccination or other topics other than identified above	“covid vaccine”, “covid-19 vaccine”, “coronavirus vaccine”, “covid vaccine update”, “covid vaccination rates”