Sales of paediatric vaccines, in particular Quinvaxem, added to revenue growth at the Dutch biophamarceutical company, Crucell NV, in the 2008 second quarter. Together with increased licensing income and higher sales of travel vaccines, revenue and other operating income rose by 51% to €59.6 million from €39.4 million a year earlier. Based on these results, Crucell said it expects revenue and operating income to increase by 20% for the year as a whole.