Modifiers matching infection:

• viral,
• bacterial,
• endemic,
• cutaneous,
• protozoal,
• serious,
• acute,
• fatal,
• benign,
• internal,
• dermatological,
• several,
• contagious,
• respiratory,
• threatening,
• febrile,
• uncontrolled,
• general,
• gi,
• systemic,
• prevalent,
• focal,
• unexpected,
• chlamydial,
• preoperative,
• remote,
• subclinical,
• intractable,
• chronic,
• severe,
• pediatric,
• concomitant,
• opportunistic,
• common,
• nasty,
• pelvic,
• cerebral,
• bad,
• auxiliary,
• spinal,
• concerned,
• bacteremic,
• negative,
• opportunist,
• critical,
• periodontal,
• biological,
• epidemic,
• neonatal,
• postoperative,
• congenital,
• diverse,
• airborne,
• acquired,
• unknown,
• intracellular,
• persistent,
• costly,
• seated,
• inflammatory,
• physical,
• pneumococcal,
• tropical,
• female,
• multiple,
• significant,
• mild,
• primary,
• nosocomial,
• animal,
• small,
• zoonotic,
• cervical,
• bronchial,
• preventable,
• parasitical,
• gastrointestinal,
• mucosal,
• adult,
• debilitating,
• suppurative,
• adjacent,
• external,
• dangerous,
• active,
• reversible,
• rickettsial,
• deep,
• topical,
• venereal,
• abdominal,
• unwanted,
• vesical,
• minor,
• nearby,
• pandemic,
• relevant,
• basic,
• important,
• maternal,
• local,
• progressive,
• devastating,
• invasive,
• possible,
• latent,
• corneal,
• noninvasive,
• ulcerative,
• deadly,
• intrauterine,
• metastatic,
• fulminant,
• joint,
• terrible,
• natural,
• intracranial,
• induced,
• lethal,
• staphylococcal,
• ordinary,
• perinatal,
• disgusting,
• untreated,
• digestive,
• new,
• gynecological,
• localized,
• pyogenic,
• european,
• fungal,
• oral,
• routine,
• vaginal,
• harmful,
• ocular,
• uterine,
• difficult,
• pathogenic,
• concurrent,
• intestinal,
• genital,
• enteric,
• eruptive,
• neurological,
• recurrent,
• single,
• related,
• stubborn,
• orthopaedic,
• renal,
• generalized,
• complex,
• transient,
• clinical,
• cooccurring,
• microbial,
• communicable,
• rare,
• complicated,
• widespread,
• resistant,
• superficial,
• stimulating,
• emergent,
• familiar,
• exotic,
• ophthalmic,
• genitourinary,
• temporary,
• curable,
• sexual,
• pleural,
• granulomatous,
• postnatal,
• dental,
• major,
• incurable,
• unusual,
• secondary,
• helminthic,
• pulmonary,
• septic,
• generalised,
• visible,
• streptococcal,
• underlying,
• cold,
• simple,
• sudden,
• parasitic,
• vital,
• level,
• specified,
• transmissible,

Simple categories matching nasty:

• illness,
• disorder,
• stuff,
• thing,
• virus,
• disease,
• weapon,
• chemical,
• predator,
• sickness,
• creature,
• microbe,
• emotion,
• preservative,
• compound,
• bacteria,
• software,
• parasite,
• program,
• happening,
• item,
• infection,
• weather,
• allergen,
• cause,
• material,
• substance,
• insect,
• bug,
• pathogen,
• contaminant,
• beast,
• pest,
• animal,
• condition,
• content,
• std,
• vice,
• germ,
• component,
• critter,