(2007) „Flaviviridae: The Viruses and Their Replication“, Fields Virology, 5th, Philadelphia, PA: Lippincott Williams & Wilkins, გვ. 1101. ISBN978-0-7817-6060-7.
(2009) West Nile Virus, Foreword by David Heymann, 2nd, Deadly Diseases & Epidemics, New York: Chelsea House, გვ. 17. ISBN978-1-60413-254-0. „The yellow fever virus was isolated in 1927“