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Risk Factors of Chikungunya Fever Outbreak in Batang Toru Sub-District, South Tapanuli District, North Sumatera, 2014

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Chikungunya fever is a vector-borne disease with high morbidity rates it caused socioeconomic impact. On 17 January2014, an outbreak of Chikungunya fever was reported in Batang Toru Sub-district, South Tapanuli District, North Sumatera.

The total number of cases were 74 with no fatalities. An analytical study with case control design was undertaken to determine the risk factors of the outbreak. The cases were population with major clinical symptoms of Chikungunya, such as fever, arthralgia, myalgia, rash and headache. Controls were neigh bours of the cases who did'nt have clinical symptoms of chikungunya.

The study used bivariate analyses with chi-square and logistic regression (95% confidence level). Somepatient's blood were tested with rapid diagnostic test (RDT) of IgM Chikungunya. The bivariate analysis showed thatvariable associated with the incidence of chikungunya were sleeping without bednets in the morning anf afternoon (p- value:0,000; OR= 4.825, CI= 2.379-9.782) and the mosquitoes larvaes in the water reservoirs around the house (p-value: 0.013;OR=3.837; CI=1.322-11.131).

The result of RDT confirmed that two of seven cases were positive for IgM Chikungunya.Outbreak of chikungunya fever was confirmed. Chikungunya transmission occured continuosly and the source oftransmission was more than one person.

Key words: risk factor, outbreak, chikungunya fever

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Series Title

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Call Number

Balaba, 10 (1) : 31-38

Publisher

Banjarnegara : Loka Litbang P2B2 Banjarnegara., 2014

Collation

8p

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ISBN/ISSN

1858-0882

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Subject(s)

RISK FACTORS
CHIKUNGUNYA FEVER

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