New guidance has been published on using a licensed vaccine during outbreaks of a specific virus. This vaccine is currently recommended for use only in a research setting. A particular type of trial is considered the best approach to determining the vaccine's effectiveness.

Further information is available on the use of this vaccine, including specific recommendations. The guidance outlines several key points, but details are limited in this summary. For more information, readers can consult the original publication, which provides a full overview of the updated guidance and its recommendations.