"Gram-negative bacteria" . "Pseudomonadales" . "Pathogenic bacteria" . "Valvular heart disease" . "Psychrophiles" . "1998 films" . "1990s action films" . "Heroic bloodshed films" . "Bacteria genera" . "Cantonese-language films" . "Hong Kong crime films" . "Inflammations" . "Police detective films" . "Films shot in Hong Kong" . "Milkyway Image films" . "Hong Kong films" . "Hong Kong action films" . "Rodent-carried diseases" . "Films set in Hong Kong" .