Parents are viewing vaccines more favorably in the wake of the recent headline-making outbreaks of whopping cough and measles, a new study finds.

In a national study conducted in May, University of Michigan researches asked parents how their views on vaccinations changed between 2014 and 2015, the period during which two dozen measles outbreaks were reported in the U.S., including a multi-state outbreak traced to Disneyland.

Compared to one year ago, one-third of parents said they believe vaccines have more benefit, 61 percent said they have about the same benefit, and five percent of parents said they thought vaccines have less benefit, the survey found.

In addition, one-third of parents also reported being more supportive of school and day care entry requirements for vaccination than they were the previous year.

Two out of every five parents, or 40 percent, believe the risk of measles for children in the U.S. is higher than what it was one year ago. Another 45 percent say the risk is about the same and 15 percent say the risk is lower, the survey found.

A resurgence of whooping cough and measles over the last few years triggered a national debate over vaccinations and last month, California Gov. Jerry Bill signed a bill to impose one of the nation's strictest vaccination laws following the Disneyland measles outbreak.