Table 2.

Predominant antigenic characterization of influenza strain compared with vaccine formulation during 2002–2008, 2011–2014

Country	Years of available data	Years predominant strain represented in
		Southern Hemisphere vaccine, %	Northern Hemisphere vaccine, %
Bolivia	2	100	50
Brazil	12	75	50
Colombia	1	100	0
Costa Rica	8	50	50
Dominican Republic	2	100	100
Ecuador	1	100	100
El Salvador	9	56	44
Guatemala	7	57	43
Honduras	7	43	57
Jamaica	1	100	100
Nicaragua	7	57	57
Panama	9	44	44
Paraguay	9	89	67
Peru	3	100	67
Total	78	65	54

The predominant strain each year could be included in both Northern and Southern Hemisphere formulation vaccine recommendations.