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SUMMARY OF SELECTED REPORTABLE DISEASES, January-December, 2020 Case counts refer to confirmed and probable cases.

The following morbidities have a YTD count at least 2 times greater than their 5-year medians: Hantavirus ;

The following morbidities have a YTD count at least 2 times less than their 5-year medians: Chikungunya; Dengue; Influenza; ; West Nile virus;

Hantavirus infection Coccidioidomycosis , Congenital Streptococcal Group A, invasive MRSA Syphilis, Primary And Secondary Syphilis, Early Latent E. coli, -producing Legionellosis chronic Vibrio infection Syphilis, Late And Late Latent Meningococcal, invasive Rocky Mtn. Spotted Pertussis, confirmed and probable pneumoniae, invasive Hepatitis A Mumps Amebiasis Streptococcal Group B, invasive, infant <90 days Giardiasis Cryptosporidiosis Hepatitis B acute Shigellosis Dengue Chikungunya Influenza West Nile virus

-14 -12 -10 -8 -6 -4 -2 0 2 4 6 8 10 12 14 Comparison of YTD count to 5-year median BELOW YTD median ABOVE YTD median

The following morbidities are not shown, due to a YTD count or 5-year median = 0:

Carbapenem-resistant (CRE); influenzae B, all ages; Measles; Zika; SUMMARY OF SELECTED REPORTABLE DISEASES Jan-December, 2020 1, 2, 3 Case counts refer to confirmed and probable cases

Jan-December Jan-December 5-year Median 2020 2019 Jan-December PREVENTABLE DISEASES: , serotype b invasive disease, all ages 0 2 2 Haemophilus influenzae , serotype b, invasive disease, <5 years of age 0 1 2 Influenza4 609 8,282 3,423 Measles 0 1 1 Meningococcal infection, invasive 3 2 3 Mumps 11 103 15 Pertussis, probable and confirmed 342 379 379 Pertussis, confirmed cases only 196 207 207 ENTERIC DISEASES: Amebiasis 11 20 16 Campylobacteriosis 905 1,615 1,372 Cryptosporidiosis 78 143 143 E.coli , Shiga toxin-producing 179 297 166 Giardiasis 82 143 143 Listeriosis 7 13 6 Salmonellosis 644 954 954 Shigellosis 237 426 549 Vibrio infection 35 52 33 VIRAL HEPATITIDES: Hepatitis A 54 590 72 Hepatitis B, acute 22 49 41 Hepatitis B, non-acute 1,101 1,189 1,028 INVASIVE DISEASES: Legionellosis 89 93 83 642 740 716 Streptococcus group A 749 790 614 Streptococcus group B in infants <90 days of age 36 44 60 Methicillin-resistant 1,607 1,467 1,355 VECTOR-BORNE & ZOONOTIC DISEASES: Chikungunya 1 3 3 Dengue 5 18 14 Hantavirus infection 4 0 1 Rocky Mountain 25 48 27 West Nile virus infection 10 174 103 Zika 0 0 3 SEXUALLY TRANSMITTED DISEASES: Chlamydia 36,164 43,220 39,649 Gonorrhea 15,539 15,249 12,901 Syphilis, primary and secondary 1,204 1,296 1,052 Syphilis, early latent 978 1,189 896 Syphilis, late and late latent 1,157 1,446 1,157 Syphilis, congenital 83 109 63 ALSO OF INTEREST IN ARIZONA: Carbapenem-resistant Enterobacteriaceae (CRE)5 262 232 N/A Coccidioidomycosis 11,411 10,358 7,478

1 Data are provisional and reflect case reports to Arizona Department of Health Services during this period. 2 These counts reflect the year reported or tested and not the date infected. 3 During 2020, the 5-year median includes cases reported 2015 through 2019. 4 Influenza is lab-confirmed only and represents “season-to-date” cases (counting from the previous September) rather than year-to-date. 5 Carbapenem-resistant Enterobacteriaceae (CRE) became reportable in 2018.

Animal rabies stats can be found at https://www.azdhs.gov/documents/preparedness/epidemiology-disease-control/rabies/data/2020.pdf.

Last updated 1/14/2021