Taste is 90% smell, as Herself found out recently when we both had Covid: "Even chocolate doesn't taste right." It didn't affect me that way to speak of, but then I've got no taste.

For completeness: I read once that it should be at least seven senses: add Balance, and Temperature Discrimination (which is distinct from Touch). I'm also myself in two minds as to whether Pain is distinct from Touch, or is just Touch (and/or Temperature) in overload mode; and some of the hairs involved in sensing Balance have crystals on the ends, so may double up as Which Way Up sensors .... and that's before we get into the controversial area of whether human pheromones still work after all these millions of years.