I feel that injuries usually spread like virus in teams. When it appears, more will likely come afterwards, and quite frequently in the same day. Then suddenly there will be no new injury in the team.

I have 2 teams. One team have many injuries in first few days and then slow down from mid season. Another team occasionally have a few injuries. So I guess the number of injuries is not increased for all. But at the same time I feel that there are more long term injuries now.