Rapid spread of Chikungunya virus infection in Orissa: India
نویسندگان
چکیده
BACKGROUND & OBJECTIVES A large number of cases of undiagnosed fever and joint pain were reported from different parts of the State of Orissa since February 2006. Epidemiological and laboratory investigation were carried out to confirm the cause of emerging illness, which was provisionally suspected as Chikungunya (CHIK) fever. METHODS Upon getting the reports of suspected CHIK like illness in different parts of the State, epidemic investigations were carried out in the outbreak affected villages. Case history was recorded, clinical examination undertaken and blood samples collected for seroconfirmation for CHIK IgM antibody using ELISA based kit. Simultaneously vector survey was also carried out. RESULTS With no previous record of CHIK infection in the State, the first outbreak was confirmed during February 2006. Subsequently, the infection spread to 13 of 30 districts in different episodes covering 79 villages till November 2007. Attack rate was 9-43 per cent in the different outbreaks with average seropositivity of 24 per cent to CHIK specific IgM. Morbidity was high though no deaths were recorded. Aedes aegypti and Ae. albopictus were identified as the possible vectors for transmission. INTERPRETATION & CONCLUSIONS The report confirmed emergence of CHIK infection in the State of Orissa, India, and its spread to a larger geographic zone in a short period which warrants public health measures to control further spread.
منابع مشابه
Re-emergence of chikungunya virus in India.
Chikungunya virus is no stranger to the Indian sub continent. Since its first isolation in Calcutta, in 1963, there have been several reports of chikungunya virus infection in different parts of India. The last outbreak of chikungunya virus infection occurred in India in 1971. Subsequently, there has been no active or passive surveillance carried out in the country and therefore, it ‘seemed’ t...
متن کاملIsolation and diagnosis of Chikungunya virus causing outbreaks in Andhra Pradesh, India
Background: Chikungunya fever has recently re-emerged in India with a high morbidity. However, the prevalence of chikungunya fever in India has been underreported due to non-availability of specialized kits to confirm the disease in most of the laboratories. Methods: Nine hundred and fifty six serum samples were collected from subjects presenting with a short febrile illness from various places...
متن کاملCongenital Chikungunya with Centro-facial Pigmentation and Persistent Thrombocytopenia: A Case Report
Hyperpigmentation over face in a neonate is rare and the differentials for the same are also rare. Congenital chickengunya, fungal and viral infections, drug rash are few differentials. Chikungunya virus (CHIKV) infection manifesting in neonates is very rare. The prevalence of the entity was described only recently. We describe a neonate with hyperpigmentation on day 3 of life with stormy cours...
متن کاملChikungunya virus infection - a resurgent scourge.
belongs to the genus Alphavirus (family Togaviridae). The major vectors are Aedes aegypti and Ae. albopictus mosquitoes. Chikungunya was first described in Tanzania, Africa in 1952. The viral genome consists of a single – stranded, positive-sense RNA molecule of approximately 11.8 kb. Genetic analysis of CHIKV sequences show evidence that the virus originated in Africa and subsequently was intr...
متن کامل