The initial report prepared by a committee of scientists for the central government on the outbreak of African Swine Fever (ASF) at the end of November in Catalonia points to four scenarios as possible hypotheses for the origin of the virus, although it acknowledges that it is still "too early to say with certainty." The four plausible scenarios are accidental release from a research laboratory, arrival from active European foci through natural or progressive transmission, deliberate introduction, or long-distance introduction mediated by human activities. The dossier, consulted by Efeagro, emphasizes that the genetic information currently available "does not allow the geographical origin of the outbreak to be attributed with certainty" and it is "premature" to do so "without the judicial and administrative investigations that are still ongoing having been completed." The dossier, consulted by Efeagro, emphasizes that the genetic information currently available "does not allow the geographical origin of the outbreak to be attributed with certainty" and it is "premature" to do so "without the judicial and administrative investigations that are still ongoing having been completed."