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Univariate and multivariable logistic regression analyses of symptom and exposure variables at T1 and T2. aAny of the following symptoms: fever, cough, runny nose, sneezing, sore throat, shortness of breath, headache, myalgia, fatigue, loss of appetite, nausea, emesis, diarrhea, upset stomach, and anosmia. bAny of the following symptoms: loss of appetite, nausea, emesis, diarrhea, and upset stomach.
