Table 1.

Parameters used in simulations

Parameter	Description	Value/Range	Source
p	probability of being confirmed	0.2 or 0.65	low probability [84,86], high probability [55]
α	relative infectiousness of unconfirmed class	0.5	based on reduced viral shedding [55-57]
ta	start of vaccination campaign (day)	20, 50, or 80	set to occur 10, 40, or 70 days after t0
tb	end of vaccination campaign (day)	Variable	depends on campaign start and duration
td	depletion of vaccine stockpile (day)	Variable	depends on stockpile size; see
t0	time of initiating pulse (day)	10	arbitrary
x0	Amplitude of initiating pulse (individuals)	1	previous epidemiological model [62]
a	width of initiating pulse (days)	1	previous epidemiological model [62]
b	mean probability of infection per contact	0.476 or 0.346	adjusted as function of p so R0* = 2.0; see sea-sonal/pandemic R0 values [1,87]
c	rate of recovery (1/days)	1/7	based on symptoms, viral shedding, cytokine levels [55,58,59]
N	total population size	108	e.g. Mexico, Phillipines [69,70]
	vaccine stockpile size	30 * 106	based on 30% coverage; see vaccine production/distribution data [21,60,61]
	maximum number of vaccines per day	105 - 107	based on vaccination clinic modeling and clinic data [25-30]
k	proportion of eligible vaccinated per day	0.001 - 0.1 (0.1-10%)	see models using proportions in this range [17,36,38,44]
δ	infection-related death rate (1/days)	10-6	based on U.S. viral surveillance data [88]

*R₀: Basic reproduction number, defined as the number of secondary infections occurring due to introduction of 1 infected individual into a susceptible population (for review see [89])