Answers are grounded in this paper and cite their sources.
HAMMAM M. HAMMAM, DELPHINE H. CLARKE, WINSTON H PRICE; ANTIGENIC VARIATION OF WEST NILE VIRUS IN RELATION TO GEOGRAPHY12, American Journal of Epidemiology,
No takes yet. Share an insight, caveat, or question.
HAMMAM et al. (1965) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: