Table 2.

Primary Human Immunodeficiency Virus Infection Estimates

Symptom	Numerator Estimate (95% CI)	Denominator Estimate (95% CI)	Prevalence Estimate (Range)
Fever	14,394 (13,880–15,936)	2,175,551 (1,723,031–2,628,071)	0.66 (0.53–0.92)
Rash	7,540 (5,998–9,082)	1,344,060 (966,721–1,721,399)	0.56 (0.35–0.94)
Pharyngitis	8,568 (7,026–10,436)	6,415,111 (5,528,853–7,301,369)	0.13 (0.10–0.19)

Note: Prevalence estimates were obtained by dividing the numerator estimate by the denominator estimate. The low range estimate was obtained by dividing the low numerator estimate by the high denominator estimate, and the high range estimate by dividing the high numerator estimate by the low denominator estimate.

CI = confidence interval.