Kyasanur forest disease and climatic attributes in India.
J Vector Borne Dis
; 59(1): 79-85, 2022.
Article
em En
| MEDLINE
| ID: mdl-35708408
ABSTRACT
BACKGROUND & OBJECTIVES:
In India, Kyasanur Forest Disease has been reported from the states of Karnataka, Kerala, Goa, and Maharashtra. The relationship between climatic factors and transmission of KFD remains untouched, therefore, the present study was undertaken.METHODS:
Based on the occurrence of cases, Shivamogga district (Karnataka) and Wayanad district in Kerala and northern Goa (Goa state) were selected for the study. Data on the incidence of KFD and climate factors were collected from concerned authorities. To determine the relationship between dependent and independent variables, spearman's correlation was calculated for monthly as well as with lag months.RESULTS:
KFD cases and temperature (°C) were found significantly correlated up to 1 months' lag period (p<0.05) while with precipitation relationship was found negatively significant for 0-3 months' lag. The range of suitable temperature for KFD in Shivamogga, Goa and Wayanad was found as 20-31°C, 25-29°C and 27-31°C respectively. The cumulative precipitation during transmission months (November-May) ranged from <150-500mm, while in non-transmission months (June-October) from >1100-2400mm. INTERPRETATION &CONCLUSION:
The analysis of three sites revealed that with the increase in temperature, the intensity of KFD transmission decreases as corroborated by the seasonal fluctuations in Shivamogga, Goa and Wayanad. High precipitation from June to October rovides suitable ecology to tick vector and sets in transmission season from November to May when cumulative precipitation is <500 mm.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Carrapatos
/
Doença da Floresta de Kyasanur
Tipo de estudo:
Incidence_studies
/
Prognostic_studies
Limite:
Animals
País/Região como assunto:
Asia
Idioma:
En
Revista:
J Vector Borne Dis
Assunto da revista:
MEDICINA TROPICAL
/
PARASITOLOGIA
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
Índia