Dropping note about what seems broader problematic editing here at dvWP on Special:Contributions/197.39.0.0/16. Seems to be some sort of drug related spam or vandalism. Commencing a tidy up. Putting in a soft block into the range. Billinghurst (talk) 16:33, 8 ޑިސެމްބަރު 2018 (MVT)

also looks to be similar edits from Special:Contributions/197.38.0.0/16 which you have reverted too . All seems medical related, and resolved, though simply not correct, numbers have reverted over time from these two ranges. Billinghurst (talk) 16:39, 8 ޑިސެމްބަރު 2018 (MVT)