ABSTRACT
OBJECTIVE: to describe the experience and preliminary results of the Arbovirus Death Investigation Committee in Ceará, Brazil, in 2017. METHODS: the Committee investigates and discusses all suspected cases of arbovirus deaths reported by the epidemiological surveillance service. RESULTS: a total of 443 suspected arbovirus deaths were reported, 220 (49.7%) of which were confirmed; of these, 88.2% were from chikungunya and 11.8% from dengue; the median age of chikungunya deaths was higher when compared to dengue (77 versus 56 years) and the time until death was also longer when compared to dengue (38 versus 12 days); median time for case closure was 54.5 days; in 2017, Ceará confirmed 80.4% of Brazilian chikungunya deaths. CONCLUSION: the investigation of deaths showed that CHIK viruses were responsible for the majority of arboviral deaths in the state of Ceará, in 2017.
Subject(s)
Arbovirus Infections/epidemiology , Chikungunya Fever/epidemiology , Dengue/epidemiology , Adolescent , Adult , Age Distribution , Aged , Aged, 80 and over , Arbovirus Infections/mortality , Arbovirus Infections/virology , Brazil/epidemiology , Chikungunya Fever/mortality , Child , Child, Preschool , Dengue/mortality , Female , Humans , Infant , Male , Middle Aged , Time Factors , Young AdultABSTRACT
BACKGROUND: Chikungunya virus infection in neonates is relatively rare and can lead to death. CASE PRESENTATION: We report the occurrence of the first death of a mother and child after probable vertical transmission of chikungunya virus in Brazil. A 28-year-old pregnant woman with hypertension presented with symptoms compatible with an arboviral disease at 34 weeks' gestation. She developed preeclampsia with severe respiratory failure which resulted in the emergency cesarean section, and the patient died 12 days after the onset of symptoms. The pre-term newborn weighed 2535 g, with an Apgar score of 4/8. He was referred to the neonatal ICU with neutrophilia and thrombocytopenia, several seizure episodes, and hemorrhagic disorders, which resulted in death. Chikungunya IgM antibody was detected in the cerebrospinal fluid. CONCLUSIONS: We present the first documented maternal and neonatal death in Brazil after probable chikungunya infection during pregnancy.
