Fixed wrong operator
(cherry picked from commit ffcb068b9652f145ad6314e534359cd678f961c9)
Fixes human internal organs list

(cherry picked from commit c0487b9c90a4d4c9454e1f75752c16e8889a152d)
Fixes germ levels going below zero

(cherry picked from commit 1502799afdfaaee4fee6280cf069eec0974eebd8)