Only 9 percent of respondents said that they had not yet gotten a shot but intended to do so, according to the survey, which was published in the April edition of the Kaiser Family Foundation’s Vaccine Monitor. Three in 10 parents said they planned to vaccinate their children as soon as they could. No vaccine is yet available in the U.S. for children; the Pfizer-BioNTech vaccine is expected to be authorized soon for those aged 12 to 15. The survey found that public confidence in the Johnson & Johnson vaccine has plummeted since health authorities suspended using it for 10 days to examine possible links to a rare, dangerous blood clotting problem.