Severe mortality impact of the 1957 influenza pandemic in Chile
Identifieur interne : 000274 ( Main/Exploration ); précédent : 000273; suivant : 000275Severe mortality impact of the 1957 influenza pandemic in Chile
Auteurs : Gerardo Chowell ; Lone Simonsen ; Rodrigo Fuentes ; Jose Flores ; Mark A. Miller ; Cécile ViboudSource :
- Influenza and Other Respiratory Viruses [ 1750-2640 ] ; 2017.
Descripteurs français
- KwdFr :
- Adolescent, Adulte, Adulte d'âge moyen, Chili (épidémiologie), Enfant, Enfant d'âge préscolaire, Femelle, Grippe humaine (mortalité), Grippe humaine (virologie), Grippe humaine (épidémiologie), Humains, Jeune adulte, Pandémies, Répartition par âge, Saisons, Sujet âgé, Virus de la grippe A (), Virus de la grippe A (génétique), Virus de la grippe A (isolement et purification).
- MESH :
- génétique : Virus de la grippe A.
- isolement et purification : Virus de la grippe A.
- mortalité : Grippe humaine.
- virologie : Grippe humaine.
- épidémiologie : Chili, Grippe humaine.
- Adolescent, Adulte, Adulte d'âge moyen, Enfant, Enfant d'âge préscolaire, Femelle, Humains, Jeune adulte, Pandémies, Répartition par âge, Saisons, Sujet âgé, Virus de la grippe A.
English descriptors
- KwdEn :
- Adolescent, Adult, Age Distribution, Aged, Child, Child, Preschool, Chile (epidemiology), Female, Humans, Influenza A virus (classification), Influenza A virus (genetics), Influenza A virus (isolation & purification), Influenza, Human (epidemiology), Influenza, Human (mortality), Influenza, Human (virology), Middle Aged, Pandemics, Seasons, Young Adult.
- MESH :
- classification : Influenza A virus.
- epidemiology : Chile, Influenza, Human.
- genetics : Influenza A virus.
- isolation & purification : Influenza A virus.
- mortality : Influenza, Human.
- virology : Influenza, Human.
- Adolescent, Adult, Age Distribution, Aged, Child, Child, Preschool, Female, Humans, Middle Aged, Pandemics, Seasons, Young Adult.
Abstract
Epidemiological studies of the 1957 influenza pandemic are scarce, particularly from lower‐income settings.
We analyzed the spatial–temporal mortality patterns of the 1957 influenza pandemic in Chile, including detailed age‐specific mortality data from a large city, and investigated risk factors for severe mortality impact across regions.
Chile exhibited two waves of excess mortality in winter 1957 and 1959 with a cumulative excess mortality rate of 12 per 10 000, and a ~10‐fold mortality difference across provinces. High excess mortality rates were associated with high baseline mortality (
The estimated A/H2N2 mortality burden in Chile is the highest on record for this pandemic—about three to five times as severe as that experienced in wealthier nations. The global impact of this pandemic may be substantially underestimated from previous studies based on high‐income countries.
Url:
DOI: 10.1111/irv.12439
PubMed: 27883281
PubMed Central: 5410718
Affiliations:
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Le document en format XML
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Miller</name><affiliation><nlm:aff id="irv12439-aff-0002"></nlm:aff></affiliation></author><author><name sortKey="Viboud, Cecile" sort="Viboud, Cecile" uniqKey="Viboud C" first="Cécile" last="Viboud">Cécile Viboud</name><affiliation><nlm:aff id="irv12439-aff-0002"></nlm:aff></affiliation></author></analytic><series><title level="j">Influenza and Other Respiratory Viruses</title><idno type="ISSN">1750-2640</idno><idno type="eISSN">1750-2659</idno><imprint><date when="2017">2017</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adolescent</term><term>Adult</term><term>Age Distribution</term><term>Aged</term><term>Child</term><term>Child, Preschool</term><term>Chile (epidemiology)</term><term>Female</term><term>Humans</term><term>Influenza A virus (classification)</term><term>Influenza A virus (genetics)</term><term>Influenza A virus (isolation & purification)</term><term>Influenza, Human (epidemiology)</term><term>Influenza, Human (mortality)</term><term>Influenza, Human (virology)</term><term>Middle Aged</term><term>Pandemics</term><term>Seasons</term><term>Young Adult</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Adolescent</term><term>Adulte</term><term>Adulte d'âge moyen</term><term>Chili (épidémiologie)</term><term>Enfant</term><term>Enfant d'âge préscolaire</term><term>Femelle</term><term>Grippe humaine (mortalité)</term><term>Grippe humaine (virologie)</term><term>Grippe humaine (épidémiologie)</term><term>Humains</term><term>Jeune adulte</term><term>Pandémies</term><term>Répartition par âge</term><term>Saisons</term><term>Sujet âgé</term><term>Virus de la grippe A ()</term><term>Virus de la grippe A (génétique)</term><term>Virus de la grippe A (isolement et purification)</term></keywords><keywords scheme="MESH" qualifier="classification" xml:lang="en"><term>Influenza A virus</term></keywords><keywords scheme="MESH" qualifier="epidemiology" xml:lang="en"><term>Chile</term><term>Influenza, Human</term></keywords><keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Influenza A virus</term></keywords><keywords scheme="MESH" qualifier="génétique" xml:lang="fr"><term>Virus de la grippe A</term></keywords><keywords scheme="MESH" qualifier="isolation & purification" xml:lang="en"><term>Influenza A virus</term></keywords><keywords scheme="MESH" qualifier="isolement et purification" xml:lang="fr"><term>Virus de la grippe A</term></keywords><keywords scheme="MESH" qualifier="mortality" xml:lang="en"><term>Influenza, Human</term></keywords><keywords scheme="MESH" qualifier="mortalité" xml:lang="fr"><term>Grippe humaine</term></keywords><keywords scheme="MESH" qualifier="virologie" xml:lang="fr"><term>Grippe humaine</term></keywords><keywords scheme="MESH" qualifier="virology" xml:lang="en"><term>Influenza, Human</term></keywords><keywords scheme="MESH" qualifier="épidémiologie" xml:lang="fr"><term>Chili</term><term>Grippe humaine</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adolescent</term><term>Adult</term><term>Age Distribution</term><term>Aged</term><term>Child</term><term>Child, Preschool</term><term>Female</term><term>Humans</term><term>Middle Aged</term><term>Pandemics</term><term>Seasons</term><term>Young Adult</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Adolescent</term><term>Adulte</term><term>Adulte d'âge moyen</term><term>Enfant</term><term>Enfant d'âge préscolaire</term><term>Femelle</term><term>Humains</term><term>Jeune adulte</term><term>Pandémies</term><term>Répartition par âge</term><term>Saisons</term><term>Sujet âgé</term><term>Virus de la grippe A</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec id="irv12439-sec-0001"><title>Introduction</title><p>Epidemiological studies of the 1957 influenza pandemic are scarce, particularly from lower‐income settings.</p></sec><sec id="irv12439-sec-0002"><title>Methods</title><p>We analyzed the spatial–temporal mortality patterns of the 1957 influenza pandemic in Chile, including detailed age‐specific mortality data from a large city, and investigated risk factors for severe mortality impact across regions.</p></sec><sec id="irv12439-sec-0003"><title>Results</title><p>Chile exhibited two waves of excess mortality in winter 1957 and 1959 with a cumulative excess mortality rate of 12 per 10 000, and a ~10‐fold mortality difference across provinces. High excess mortality rates were associated with high baseline mortality (<italic>R</italic><sup>2</sup>=41.8%; <italic>P</italic>=.02), but not with latitude (<italic>P</italic>>.7). Excess mortality rates increased sharply with age. Transmissibility declined from <italic>R</italic>=1.4‐2.1 to <italic>R</italic>=1.2‐1.4 between the two pandemic waves.</p></sec><sec id="irv12439-sec-0004"><title>Conclusions</title><p>The estimated A/H2N2 mortality burden in Chile is the highest on record for this pandemic—about three to five times as severe as that experienced in wealthier nations. The global impact of this pandemic may be substantially underestimated from previous studies based on high‐income countries.</p></sec></div></front><back><div1 type="bibliography"><listBibl><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct></listBibl></div1></back></TEI><affiliations><list></list><tree><noCountry><name sortKey="Chowell, Gerardo" sort="Chowell, Gerardo" uniqKey="Chowell G" first="Gerardo" last="Chowell">Gerardo Chowell</name><name sortKey="Flores, Jose" sort="Flores, Jose" uniqKey="Flores J" first="Jose" last="Flores">Jose Flores</name><name sortKey="Fuentes, Rodrigo" sort="Fuentes, Rodrigo" uniqKey="Fuentes R" first="Rodrigo" last="Fuentes">Rodrigo Fuentes</name><name sortKey="Miller, Mark A" sort="Miller, Mark A" uniqKey="Miller M" first="Mark A." last="Miller">Mark A. Miller</name><name sortKey="Simonsen, Lone" sort="Simonsen, Lone" uniqKey="Simonsen L" first="Lone" last="Simonsen">Lone Simonsen</name><name sortKey="Viboud, Cecile" sort="Viboud, Cecile" uniqKey="Viboud C" first="Cécile" last="Viboud">Cécile Viboud</name></noCountry></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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