
Following intensive vaccination efforts, measles cases plunged across the world. Now clusters of new infections — some linked, some not — have confounded health officials.
Published: April 3, 2019 at 02:00AM
from NYT Health https://ift.tt/2UrcGUW

Following intensive vaccination efforts, measles cases plunged across the world. Now clusters of new infections — some linked, some not — have confounded health officials.
Published: April 3, 2019 at 02:00AM
from NYT Health https://ift.tt/2UrcGUW
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