Merck Recalls Children's Vaccine

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The recall is for 1.2 million doses of the vaccine for Hib, which protects against meningitis, pneumonia and other serious infections, and a combination vaccine for Hib and hepatitis B. The vaccine is recommended for all children under 5 and is usually given in a three-shot series, starting at two months.

Merck, based in Whitehouse Station, N.J., is one of the few drug makers that produces a significant number of vaccines.

This week New Jersey took a controversial step toward becoming the first state to require flu shots for preschoolers after a health advisory board backed new vaccine requirements over opposition from parents.

While the company took a black eye with its September 2004 withdrawal of the painkiller Vioxx due to increased risk of heart attacks and strokes, the company has been performing well recently. On Tuesday, it gave an upbeat assessment in its annual briefing for analysts.

Five weeks ago, Merck reached a deal to settle up to 50,000 Vioxx lawsuits for $4.85 billion, an amount expected to save the company millions in trial costs.