Amblyomma americanum: a potential vector of human ehrlichiosis.
Am J Trop Med Hyg
; 49(2): 239-44, 1993 Aug.
Article
en En
| MEDLINE
| ID: mdl-8357086
ABSTRACT
Polymerase chain reaction primers specific for Ehrlichia chaffeensis were used to amplify DNA from extracts of pooled ticks. Amplification was performed on extracts from 140 pools (1,579 total ticks) consisting of three tick genera collected from five states. The characteristic 389-basepair product was observed after amplification of extracts from seven different pools of adult Amblyomma americanum (117 pools, 1,462 ticks), but not from pools of nymphs. No specific product was observed after amplification of 20 pools (105 ticks) of Dermacentor variabilis and three pools of Ixodes scapularis (12 ticks). Ehrlichia chaffeensis was present in A. americanum at a minimum frequency of > or = 0.48%, suggesting that A. americanum may be a vector of human ehrlichiosis.
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Banco de datos:
MEDLINE
Asunto principal:
Vectores Arácnidos
/
Garrapatas
/
Ehrlichiosis
/
Ehrlichia
Límite:
Animals
/
Humans
País como asunto:
America do norte
Idioma:
En
Año:
1993
Tipo del documento:
Article