Retrospectative study on 20 infants with dengue heamorrhagic fever was confirmed by Mac ELISA at Chau Doc Hospital in 2001, study group was 6 infants < 12 months age, control group was 14 infants > 12 months age. 100% high fever; 66,7% subcutaneous peteachie; 66,7% hepatomegaly; 50% gastro-intestinal bleeding; accompany with respiratory infection were the most common signs. 100% hemoconcentration; 80% glomerule under 100.000/mm3. The rate of dengue shock syndrome was rather high. IgG antibody which infants less than 1 year old transplacetally received from their mothers caused antibody dependent enhancement of infection, so they with primary-type infection were at risk of dengue shock syndrome as in older children with secondary infection
Dengue ; diagnosis ; Fever ; Hospitals ; epidemiology