Huggy Bear's the Pits address is 1348 6th Street.
Never aired in France back in the seventies. (France picked and chose which episodes to purchase to dub and air there.)
An episode of Charlie's Angels (1976), from the same era, also ends with Jill Munroe (Farrah Fawcett) meditating and trying to teach Bosley, just like Hutch was doing here, and tries to teach Starsky.
Same "hide-and-seek" plot as I Spy episode "Bet me a dollar" [s1e20] except Hutch contracts Botulism instead of Anthrax.
'70s TV shows often copied each other, whereby a previously aired show's premise would be come a "theme" for many different TV shows. The theme here is the lead character is poisoned and it's a race against time to find a cure. This had previously been done in The Mouse That Died (1970).