Zenodo was launched within the frame of the OpenAIRE project, which was commissioned by the European Commission to provide open access to research outputs financed by public funding in Europe. Not all researchers necessarily have access to an institutional repository. Zenodo was designed to help them to comply with the open access requirement.
Nextstrain is an open-source project to harness the scientific and public health potential of pathogen genome data. They provide a continually updated view of publicly available data alongside powerful analytic and visualization tools which can be used by the public. Through interactive data visualizations, they aim to allow exploration of always up-to-date datasets, providing a novel surveillance tool to the scientific and public health communities.