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. Author manuscript; available in PMC: 2012 Jan 3.
Published in final edited form as: Ann Intern Med. 2009 Dec 15;151(12):829–839. doi: 10.1059/0003-4819-151-12-200912150-00157

Figure 2. Progression of pandemic with no vaccination under different R0s to time of vaccine availability.

Figure 2

The effective viral reproductive rate would be 1.42 in October, and 1.35 in November, due to the development of immunity in individuals in the population who had been infected and recovered.