Agent/disease | Incubation period | Arcanobacterium haemolyticum | Unknown | Atypical measles | 7 to 14 days | Blastomyces dermatitidis | 30 to 45 days | Boutonneuse fever (Rickettsia conorii) | 6 to 10 days | Cat scratch disease | 7 to 14 days | Chancroid | 1 to 35 days | Chickenpox | 10 to 20 days | Chikungunya | 3 to 7 days | Chlamydia psittaci | 5 to 21 days | Coccidioides immitis | 7 to 21 days | Coxsackie/echovirus | 2 to 9 days | Cutaneous larva migrans | 2 to 4 days | Dengue | 3 to 14 days | Disseminated gonococcal infection | 5 days to several months | Ehrlichiosis | 7 to 21 days | Escherichia coli 0157:H7 | 3 to 8 days | Epstein-Barr virus (mononucleosis) | 30 to 50 days | Gnathostomiasis | 3 to 12 months | Granuloma inguinale | 8 to 80 days | Hepatitis B | 45 to 160 days | Hepatitis C | 14 to 180 days | Herpes simplex (genital) | 2 to 7 days | Human immunodeficiency virus (HIV) | 28 to 180 days | Kawasaki syndrome | Unknown | Leishmaniasis | 14 to 56 days | Loiasis | 6 to 12 months | Lyme disease | 3 to 30 days | Lymphogranuloma venerum (LGV) | 3 to 21 days | Mycobacterium leprae | >1 year | M. marinum | 14 to 56 days | | Agent/disease | Incubation period | Mycoplasma pneumoniae | 7 to 28 days | Neisseria meningitidis | 1 to 10 days | Onchocerciasis | 6 to 12 months | Parvovirus B19 | 7 to 21 days | Reiter's syndrome | 7 to 14 days | Relapsing fever | 4 to 18 days | Rheumatic fever | 7 to 35 days | Rickettsialpox, Rickettsia akari | 10 to 14 days | Rocky Mountain spotted fever, R. rickettsii | 2 to 14 days | Roseola infantum | 5 to 15 days | Rubella | 5 to 21 days | Rubeola | 10 to 14 days | SARS-CoV-2 (COVID-19) | 2 to 14 days | Salmonella typhi (enteric fever) | 3 to 60 days | Spirillum minus | 7 to 24 days | Sporothrix schenckii | 7 to 30 days | Staphylococcal toxic shock syndrome | 2 days | Streptobacillus moniliformis | 3 to 22 days | Syphilis | 9 to 90 days | Toxoplasma gondii | 4 to 21 days | Trypanosoma cruzi | 5 to 14 days | Tularemia | 1 to 21 days | Typhus: endemic flea-borne, R. typhi | 7 to 14 days | Typhus: epidemic louse-borne, R. prowazekii | 7 to 14 days | Typhus: scrub, R. orientalis/R. tsutsugamushi | 6 to 21 days | Vibrio vulnificus | 1 to 4 days | West Nile virus | 2 to 14 days | Yersinia pestis | 2 to 8 days | Zika virus | 2 to 14 days | |