Link Search Menu Expand Document

List of Symptom Indicators

List of symptom indicators.

Indicator Description Survey Question Used Earliest Date Available
covid Respondents that have reported COVID-like illness (CLI). COVID-like illness: fever, along with cough, shortness of breath, or difficulty breathing. B1_1, B1_2, B1_3 2020-04-23
flu Respondents that have reported Influenza-like illness (ILI). Influenza-like illness: fever, along with cough or sore throat. B1_1, B1_2, B1_7 2020-04-23
anosmia Respondents reporting anosmia (loss of smell or taste). B1_10 2020-04-23
cmty_covid Respondents who personally know anyone in their local community who is sick with a fever and either a cough or difficulty breathing. B3 2020-04-23
symp_chills Respondents reporting chills. B1_13 2020-05-07
symp_sleep_changes Respondents reporting changes to sleep. B1_14 2020-11-23 to 2021-06-07
symp_fever Respondents reporting fever. B1_1 2020-04-23
symp_cough Respondents reporting cough. B1_2 2020-04-23
symp_diff_breathing Respondents reporting difficulty breathing. B1_3 2020-04-23
symp_fatigue Respondents reporting fatigue. B1_4 2020-04-23
symp_stuffy_nose Respondents reporting stuffy or runny nose. B1_5 2020-04-23
symp_aches Respondents reporting aches or muscle pain. B1_6 2020-04-23
symp_sore_throat Respondents reporting sore_throat. B1_7 2020-04-23
symp_chest_pain Respondents reporting chest pain. B1_8 2020-04-23
symp_nausea Respondents reporting nausea. B1_9 2020-04-23
symp_eye_pain Respondents reporting eye pain. B1_11 2020-04-23 to 2021-06-07
symp_headache Respondents reporting headache. B1_12 2020-04-23
cli_w11 Respondents that have reported COVID-like illness (CLI). COVID-like illness: fever, along with cough, shortness of breath, or difficulty breathing. B1_1, B1_2, B1_3 Note: Wave 11 data from 5/20/2021 to 6/7/2021 only. 2021-05-20 to 2021-06-17
ili_w11 Respondents that have reported Influenza-like illness (ILI). Influenza-like illness: fever, along with cough or sore throat. B1_1, B1_2, B1_7 Note: Wave 11 data from 5/20/2021 to 6/7/2021 only. 2021-05-20 to 2021-06-17
had_covid_ever Percentage of people reporting having had COVID-19. B0 2021-05-20