The public service announcements target children and their parents, young adults and those in high-risk groups, such as people with asthma. The ads in English and Spanish come as a shortage of the vaccine is easing, with another 10 million doses expected to become available this week. The messages also are a shift from earlier efforts to teach Americans how to avoid spreading the illness, known also as H1N1.
Health and Human Services Secretary Kathleen Sebelius was announcing the new ads Monday.
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