Table 2.

Efficacy of Alternative Regimens Relative to Seasonal Regimen and Dates of Dose 1 for OFS, OFS4, and OFS3

City	Efficacy of Seasonal Regimen, %	RRR of Alternative, %a					Start Date
		NOV1	MED30	OFS	OFS4	OFS3	OFS	OFS4	OFS3
Atlanta, GA	48.6	−2.2	−0.3	5.6	−1.8	−11.5	Sep 30	Oct 8	Oct 22
Birmingham, AL	50.7	2.7	2.1	7.4	1.7	−12.2	Oct 20	Nov 4	Nov 25
Cleveland, OH	48.5	4.9	6.7	11.6	2.1	−7.1	Oct 25	Nov 18	Dec 11
Columbia, SC	47.7	2.3	−53.6	11.7	0.8	−14.1	Oct 16	Oct 27	Nov 11
Corpus Christi, TX	51.2	0.9	−27.3	4.9	−0.9	−14.4	Oct 11	Oct 31	Nov 18
Honolulu, HI	39.1	0.8	−0.0	6.7	−1.9	−11.8	Oct 9	Oct 9	Oct 29
Indianapolis, IN	50.8	3.7	4.3	6.9	2.8	−7.1	Nov 12	Nov 29	Dec 20
Long Beach, CA	51.1	4.2	4.2	6.5	3.3	−4.0	Nov 2	Nov 21	Dec 11
Los Angeles, CA	48.6	6.1	6.9	9.2	5.4	−7.5	Nov 1	Nov 17	Dec 7
Nashville, TN	48.2	2.9	1.2	9.5	−0.5	−15.3	Oct 19	Nov 5	Nov 20
New Orleans, LA	50.8	−0.8	1.1	5.4	−0.8	−12.6	Oct 4	Oct 18	Oct 29
Oklahoma City, OK	50.7	4.4	4.3	6.4	2.5	−6.6	Nov 2	Nov 21	Dec 12
Richmond, VA	46.1	0.6	−9.5	6.8	−4.2	−15.9	Oct 24	Nov 10	Nov 26
San Antonio, TX	51.1	2.7	4.2	6.2	2.6	−4.5	Oct 18	Oct 28	Nov 18
San Diego, CA	52.0	2.7	1.2	5.8	0.9	−7.6	Oct 30	Nov 20	Dec 7
Seattle, WA	50.2	0.9	0.8	6.2	2.4	−10.2	Nov 13	Dec 3	Dec 19
Sioux Falls, SD	45.5	5.4	10.4	14.8	9.5	−0.1	Nov 27	Dec 10	Dec 21
St Louis, MO	48.2	5.4	−4.1	8.2	3.1	−8.6	Oct 27	Nov 18	Dec 9
Median	49.4	2.7	1.2	6.8	1.9	−9.4	Oct 24	Nov 13	Dec 1

Abbreviations: See Table 1. RRR, relative risk reduction.

^aComputed over seasons relative to the 5-dose seasonal regimen.