Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases · 2023
Changing molecular epidemiology of Hepatitis A virus in Santiago, Chile from 2010 to 2021.
СтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
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Ошибки и ограничения
История · было → стало
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Levican Jorge, Ampuero Manuel, Rabello Camila, Venegas Ignacio, Quarleri Jorge, Gaggero Aldo
Аннотация
OBJECTIVES: Hepatitis A (HAV) virus causes asymptomatic to life-treating fulminant hepatitis. During infection, patients show large viral excretion in their stools. Resistance of HAV to environmental conditions, allows us to recover viral nucleotide sequences from wastewater and trace its evolutionary history.
METHODS: We characterize twelve years of HAV circulation in wastewater from Santiago, Chile, and conducted phylogenetic analyses to decipher the dynamics of circulating lineages.
RESULTS: We observed the exclusive circulation of the HAV IA genotype. The molecular epidemiologic analyses showed a steady circulation of a dominant lineage with low genetic diversity (d = 0,007) between 2010 and 2017. An outbreak of Hepatitis A associated with men who have sex with men, in 2017 was associated with the irruption of a new lineage. Remarkably, a dramatic change in the dynamic of HAV circulation was observed in the period post-outbreak; between 2017 and 2021 when 4 different lineages were transiently detected. Exhaustive phylogenetic analyses indicate that these lineages were introduced and possibly derived from isolates from other Latin American countries.
CONCLUSION: The HAV circulation in recent years in Chile is rapidly changing and suggests that this phenomenon could be a consequence of massive population migrations in Latin America caused by political instability and natural disasters.
METHODS: We characterize twelve years of HAV circulation in wastewater from Santiago, Chile, and conducted phylogenetic analyses to decipher the dynamics of circulating lineages.
RESULTS: We observed the exclusive circulation of the HAV IA genotype. The molecular epidemiologic analyses showed a steady circulation of a dominant lineage with low genetic diversity (d = 0,007) between 2010 and 2017. An outbreak of Hepatitis A associated with men who have sex with men, in 2017 was associated with the irruption of a new lineage. Remarkably, a dramatic change in the dynamic of HAV circulation was observed in the period post-outbreak; between 2017 and 2021 when 4 different lineages were transiently detected. Exhaustive phylogenetic analyses indicate that these lineages were introduced and possibly derived from isolates from other Latin American countries.
CONCLUSION: The HAV circulation in recent years in Chile is rapidly changing and suggests that this phenomenon could be a consequence of massive population migrations in Latin America caused by political instability and natural disasters.