Zika virus spread undetected for many months, NIH-supported study finds

(NIH/National Institute of Allergy and Infectious Diseases) Genetic analysis of samples collected as the Zika virus spread throughout the Americas after its introduction show that the virus circulated undetected for up to a year in some regions before it came to the attention of public health authorities. Genetic sequencing has also enabled scientists to recreate the epidemiological and evolutionary paths the virus took as it spread and split into distinct subtypes. The research, published in Nature, was supported in part by NIAID.
Source: EurekAlert! - Infectious and Emerging Diseases - Category: Infectious Diseases Source Type: news