They recorded a large number of measles cases, mainly in the ranks of members of the ultra-Orthodox Jewish community.
"Vaccination is very important," Trump told reporters at the White House. "Everyone should receive a dose (vaccine), " he said.
In the United States, 695 cases of this disease have already been registered since the beginning of this year.
Several US public health authorities are trying to prevent the spread of this virus and the epidemic caused by the increase in measles in the US. For example, more than 200 students and staff at the University of California in Los Angeles (UCLA) and the California State University (CSU) must be quarantined to suspect that they may be measles.
They recorded a large number of measles cases, mainly in the ranks of members of the ultra-Orthodox Jewish community. Many of them refuse vaccination, AFP writes.
According to the agency, the spread of measles may be largely a disinformation campaign where parents refuse to vaccinate their children.
In the past, Trump had suspected the effectiveness of the vaccines. In 2012 and 2014, Twitter has distorted the relationship between vaccination and childhood autism several times.