LOS ANGELES (CBSLA) — A person infected with the measles virus traveled through the heavily populated Union Station in downtown Los Angeles last month, bringing the total number of confirmed measles cases in the county to 25, health officials announced Tuesday.

The Union Station Patsaouras Transit Bus Plaza in downtown L.A. on Aug. 7, 2019. (CBS2)

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According to the L.A. County Department of Public Health (LACDPH), the contagious person was a non-resident who traveled through Union Station Patsaouras Transit Bus Plaza Bay 8 on July 23, 2019, between 12:15 p.m.and 3:15 p.m. The case is not linked to any other recent measles cases in the county.

Anyone who may have been at this location on those dates may be at risk of developing measles for up to 21 days after being exposed.

L.A. County’s measles outbreak first took center stage in April, when UCLA and California State University L.A. issued a quarantine order after learning that hundreds of students and staff may have been exposed to the virus. Last month, health officials warned of a measles patient who had hit several coffee shops in Westside L.A.

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So far in 2019, there have been 16 measles cases among L.A. County residents, in addition to nine non-resident measles patients who traveled through L.A. County.

LACDPH are urging residents, especially those who travel internationally and those who have not been fully protected against measles, to get the measles immunization. Anyone who thinks they may have been exposed to the measles should monitor themselves for illness with fever and/or an unexplained rash from 7 days to 21 days after their exposure.

If symptoms develop, stay at home and call a healthcare provider immediately.

Measles immunizations are available at healthcare providers, local pharmacy or health clinics. Public health clinics offer no or low-cost immunizations for individuals who are uninsured or underinsured.

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For more information about measles, visit Public Health or call 2-1-1.