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Long-term measles-induced immunomodulation increases overall childhood infectious disease mortality.


ABSTRACT: Immunosuppression after measles is known to predispose people to opportunistic infections for a period of several weeks to months. Using population-level data, we show that measles has a more prolonged effect on host resistance, extending over 2 to 3 years. We find that nonmeasles infectious disease mortality in high-income countries is tightly coupled to measles incidence at this lag, in both the pre- and post-vaccine eras. We conclude that long-term immunologic sequelae of measles drive interannual fluctuations in nonmeasles deaths. This is consistent with recent experimental work that attributes the immunosuppressive effects of measles to depletion of B and T lymphocytes. Our data provide an explanation for the long-term benefits of measles vaccination in preventing all-cause infectious disease. By preventing measles-associated immune memory loss, vaccination protects polymicrobial herd immunity.

SUBMITTER: Mina MJ 

PROVIDER: S-EPMC4823017 | biostudies-literature | 2015 May

REPOSITORIES: biostudies-literature

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Long-term measles-induced immunomodulation increases overall childhood infectious disease mortality.

Mina Michael J MJ   Metcalf C Jessica E CJ   de Swart Rik L RL   Osterhaus A D M E AD   Grenfell Bryan T BT  

Science (New York, N.Y.) 20150507 6235


Immunosuppression after measles is known to predispose people to opportunistic infections for a period of several weeks to months. Using population-level data, we show that measles has a more prolonged effect on host resistance, extending over 2 to 3 years. We find that nonmeasles infectious disease mortality in high-income countries is tightly coupled to measles incidence at this lag, in both the pre- and post-vaccine eras. We conclude that long-term immunologic sequelae of measles drive intera  ...[more]

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