The Kansas City Chiefs have not had a wide receiver catch a touchdown pass so far this season (through Week 15). According to team stats, only running backs, fullbacks, and tight ends have caught a TD pass so far this season.
According to the NFL_Stats twitter account, the Chiefs haven't had a WR catch a TD pass since December 8, 2013:
The #Chiefs have not had a WR catch a TD pass since December 8th, 2013
That is 17 straight regular season games without a WR catching a TD pass (the Chiefs did have a WR catch a TD pass in their playoff game last season). A December 19 article on Steelers.com confirms this:
A Chiefs wide receiver hasn’t caught a touchdown pass in 17 straight games, since Dwayne Bowe on Dec. 8, 2013 at Washington.
Has an NFL team ever gone an entire season without a wide receiver catching a touchdown pass?
What is the longest streak of games an NFL team has gone without a wide receiver catching a touchdown pass?