Evidence for Human-to-Human Transmission of Hantavirus: A Systematic Review

Joao Toledo, Michelle M Haby, Ludovic Reveiz, Leopoldo Sosa Leon, Rodrigo Angerami, Sylvain Aldighieri

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva


BACKGROUND: Hantavirus is known to be transmitted from rodents to humans. However, some reports from Argentina and Chile have claimed that the hantavirus strain - Andes virus (ANDV) - can cause human-to-human transmission of the disease. The aim of this systematic review was to assess the evidence for human-to-human transmission of hantavirus. METHODS: We searched PubMed (inception to 28 February 2021), Cochrane CENTRAL, Embase, LILACS and SciELO (inception to 3 July 2020) and other sources. We included studies that assessed whether interpersonal contact with a person with laboratory-confirmed hantavirus infection led to human-to-human transmission. Two reviewers conducted screening, selection, data extraction, and risk of bias (RoB) assessment. RESULTS: Twenty-two studies met the inclusion criteria. Meta-analysis was not possible due to heterogeneity. With the exception of one prospective cohort study of ANDV in Chile with serious RoB, evidence from comparative studies (strongest level of evidence available) does not support human-to-human transmission of hantavirus infection. Non-comparative studies with a critical RoB suggest that human-to-human transmission of ANDV may be possible. CONCLUSIONS: The balance of the evidence does not support the claim of human-to-human transmission of ANDV. Well-designed cohort and case-control studies that control for co-exposure to rodents are needed to inform public health recommendations.
Hantavirus infection is a disease that is passed from animals to humans and can cause severe complications in the lungs and kidneys, and potentially death. The disease is transmitted to humans via contact with, or inhalation of, feces and urine of infected mice (rodents). There are some reports in the scientific literature from Argentina and Chile indicating that hantavirus transmission between humans also occurs. Our research evaluated the scientific evidence for this hypothesis. We found that the balance of evidence does not support human to human transmission. More research is needed to clarify the issue. Health workers and community individuals should continue to comply with basic principles of infection prevention and control, including hand hygiene and use of face masks.
Idioma originalIndefinido/desconocido
Número de artículojiab461
PublicaciónThe Journal of Infectious Diseases
EstadoPublicada - 13 sep 2021

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