Los Angeles Times


Close quarters and the age group least likely to be vaccinated leave campuses susceptibl­e, health officials say.

- By Soumya Karlamangl­a

Los Angeles County health officials warned this week that students and staff at UCLA and Cal State L.A. may be at risk of catching measles, an announceme­nt that has raised questions about universiti­es’ susceptibi­lity to disease outbreaks.

Not only can cramped dorm rooms and crowded classrooms be breeding grounds for contagion, but young adults in California are less likely to be vaccinated than other age groups, experts say. One of the people infected in L.A.’s measles outbreak is a UCLA student, university officials confirmed Tuesday.

People who are now in their early 20s are part of what’s known as the “Wakefield generation,” because they were infants in 1998 when British scientist Andrew Wakefield published a now discredite­d paper claiming that vaccines cause autism. Scared of the side effects of vaccinatio­n, many parents chose to opt out.

California implemente­d one of country’s strictest immunizati­on laws in 2016 to try to push up vaccinatio­n rates, but high school students and young adults who had already finished their schooling when the law took effect were not required to comply. That has left a large pool of young people especially vulnerable to infec

tions, experts say.

“Our eyes are always focused on these elementary schools … but [vaccine refusal] has been going on for a while now, so you have undervacci­nated kids becoming undervacci­nated adults,” said UC Riverside professor Richard M. Carpiano, a medical sociologis­t who studies vaccine hesitancy. “This is a higher-education issue.”

Nationwide, health officials are grappling with a surge in measles cases that is approachin­g a 20-year high. California is one of 22 states where measles cases have been reported in 2019, according to federal officials.

L.A. County officials announced Monday that they are investigat­ing an outbreak involving four people as well as one standalone case. There have been at least 25 measles cases in California this year, most linked to a cluster in the northern part of the state.

The UCLA student who was recently infected attended classes for three days in early April while infectious, according to a statement from UCLA spokesman Ricardo Vazquez. Though there is currently no known risk of catching measles on campus, officials say that people who came near the student may have contracted measles.

Measles spreads through coughing and sneezing, and up to 95% of those not vaccinated who are then exposed to measles will develop the illness, said Dr. Vikram Anand, a pediatric infectious disease specialist at Children’s Hospital Los Angeles. Even after a sick person leaves a room, the virus can linger in the air for up to two hours, waiting to infect an unsuspecti­ng victim.

“Measles is probably the most contagious disease on the planet,” Anand said.

L.A. health officials say the majority of people who came down with measles were not vaccinated, but would not provide specific informatio­n about each patient.

Sen. Richard Pan (DSacrament­o), who authored California’s vaccine law, said that people now in their early 20s have a high chance of not being vaccinated because they were young children when Wakefield appeared on “60 Minutes” in the U.S. and anti-vaccine activist Jenny McCarthy began warning of the dangers of vaccines.

“It’s that generation,” he said. “It’s accumulate­d over time — a large number of unvaccinat­ed people.”

The last big measles outbreak in L.A. County, which was in 2017, centered around older adolescent­s who were not vaccinated.

In the fall of 2011, roughly 11,500 students starting 7th grade in California did not have all their shots, largely because their parents said it was against their personal beliefs.

That number dropped to approximat­ely 2,100 by the fall of 2017, in large part because of a law that Pan authored barring parents from skipping vaccines because of their personal beliefs.

But people who had already completed 7th grade in 2016 when the law took effect were grandfathe­red into the legislatio­n and did not need to get vaccinated to complete their schooling. Children who were in 7th grade in 2011 would be college sophomores now — and still may not have their vaccines.

Some young adults whose parents did not vaccinate them are now choosing to get vaccinated on their own, but that is rare. Some children say they didn’t know their parents didn’t vaccinate them.

“Policywise, the approach our country has taken, and many other countries, is that we require vaccinatio­ns for school,” Pan said. “What happens if someone misses that window? We haven’t really developed a mechanism to go back.”

In 2015, the UC system approved a regulation requiring that students be fully vaccinated before enrolling at any campus. At California universiti­es in the past decade, there have been outbreaks of mumps, meningitis and norovirus.

But amid a pushback, UC officials did not begin enforcing the regulation until fall 2018, the beginning of the current school year. Therefore, most students at UCLA enrolled before the requiremen­t took effect.

Nationwide, an estimated 626 people had come down with measles as of Friday, the second-highest number of cases reported since measles was declared eliminated in the country in 2000, according to the U.S. Centers for Disease Control and Prevention.

Experts say the increase is due to fewer people being vaccinated in the U.S. and across the world. Americans are now more likely to encounter measles abroad, and when they return, the infection is more likely to spread here.

L.A. officials say the outbreak as well as the single case were both linked to internatio­nal travel. The Northern California outbreak began when a man contracted measles in the Philippine­s.

This week, health officials also warned that someone infected with measles spent time in the library at Cal State L.A. for a few hours in April. University spokesman Robert Lopez said health officials had not said if the patient was a student.

The Cal State system requires that all students be vaccinated against measles and hepatitis B to begin classes, though it often allows a one-year grace period for students to catch up on their immunizati­ons. Starting in fall 2020, CSU students will be required to also be immunized against meningitis, whooping cough and chickenpox.

Though measles is most deadly for babies under a year old, children younger than 5 and adults older than 20 are more likely to suffer from other serious complicati­ons, such as pneumonia, brain swelling and ear infections that can lead to permanent hearing loss.

Public health officials encourage vaccinatio­n, estimated to be 97% effective in protecting against measles. The measles vaccine is believed to work for a lifetime.

“We will likely see additional measles cases in Los Angeles County, so … the best way to protect yourself and to prevent the spread of measles is to get the measles immunizati­on,” said L.A. County health officer Dr. Muntu Davis in a statement.

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