“Mary Pat and I have had our children vaccinated and we think that it’s an important part of being sure we protect their health and the public health,” Christie told reporters here Monday. But the likely Republican presidential candidate added: “I also understand that parents need to have some measure of choice in things as well, so that’s the balance that the government has to decide.”

Christie’s comments came after a laboratory tour at MedImmune, a biologics company that makes vaccines in Cambridge. Christie is on a three-day tour of Britain designed to promote trade with New Jersey businesses and round out his foreign policy resume ahead of a likely 2016 run for the White House. 

Christie was asked to weigh in on the debate in the United States over the measles outbreak. On Sunday, Obama told NBC News anchor Savannah Guthrie, “You should get your kids vaccinated.”