Citing 'supply constraints,' the pharmaceutical giant is pulling out of its long-term agreement to provide rotavirus vaccines to four countries in West Africa. Though rarely life-threatening in rich nations, the World Health Organization says the diarrhea-causing virus kills some 200,000 children each year, and Merck ending its deliveries by 2020 could leave around 3 million children unvaccinated. Instead, the company will reportedly supply the vaccines to China - likely at a higher price - though it said it was just fulfilling a contract signed in 2012." Assuming Merck does not want to increase production output of this vaccine, and the number of lives saved in China and Africa is approximately the same, do you think Merck is honoring a new contract or acting to maximize profit by selling to China