1.    Calisher, C.H., et al.  1969.  Am. J. Trop. Med. and Hyg. 18:779-788.  2.    Calisher, C.H., et al.  1981.  Am. J. Trop. Med. and Hyg. 30:473-476.  3.    Jakob, W.L., et al.  1971.  J. Med. Ent. 16:80-81  4.    Kinney, R.M. and Calisher, C.H.  1981.  Am. J. Trop. Med. Hyg. 30:1307-1318. 
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