Severe HFRS showed different clinical and laboratory characteristics
Statistical analysis showed that HFRS patients with a history of rat contact history (χ 2=5.712,P = 0.024 < 0.05), muscle and joint pain (χ 2= 14.438,P = 0.000 < 0.01), weight loss (χ 2=14.438,P = 0.000< 0.01), pharyngeal (χ 2= 17.679,P = 0.000 < 0.01) conjunctival(χ 2= 14.438,P = 0.000< 0.01) hyperemia, abnormal white blood cell count (χ 2= 9.900,P = 0.003 < 0.01), urine protein (χ 2= 9.900,P =0.003 < 0.01) and antibody IGM (χ 2= 11.917,P = 0.001< 0.01) positive cases had a higher severe rate. The differences between the two groups were statistically significant (P < 0.05).