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

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...

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Vydáno v:Science (American Association for the Advancement of Science) Ročník 348; číslo 6235; s. 694 - 699
Hlavní autoři: Mina, Michael J, Metcalf, C Jessica E, de Swart, Rik L, Osterhaus, A D M E, Grenfell, Bryan T
Médium: Journal Article
Jazyk:angličtina
Vydáno: United States 08.05.2015
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ISSN:1095-9203
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Shrnutí: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.
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ISSN:1095-9203
DOI:10.1126/science.aaa3662