Isolates Currently Available

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Isolates as of June 3, 2022

Isolates Currently Available
Organism Year (number of unique strains) Demographic and clinical data available Laboratory testing results available
Group A Streptococcus 1995 (n=278)
1996 (n=135)
1997 (n=206)
1998 (n=525)
1999 (n=653)
2000 (n=538)
2001 (n=326)
2002 (n=794)
2003 (n=1109)
2004 (n=856)
2005 (n=901)
2006 (n=982)
2007 (n=968)
2008 (n=962)
2009 (n=966)
2010 (n=1039)
2011 (n=1117)
2012 (n=908)
2013 (n=1029)
2014 (n=1270)
2015 (n=1399)
2016 (n=1745)
2017 (n=2209)
2018 (n=2310)
2019 (n=2314)		 Age groups: < 1 yr, 1 yr, 2-4 yrs, 5-17 yrs, 18-34 yrs, 35-49 yrs, 50-64 yrs, ≥ 65 yrs

Presence or absence of the following severe infections: NF*, STSS**, puerperal sepsis

Source: CSF, blood, or other sterile site

 emm type Presence or absence of serum opacity factor
Group B Streptococcus 1995 (n=4)
1996 (n=1)
1997 (n=0)
1998 (n=301)
1999 (n=372)
2000 (n=319)
2001 (n=261)
2002 (n=635)
2003 (n=1172)
2004 (n=1316)
2005 (n=1455)
2006 (n=1302)
2007 (n=1216)
2008 (n=1286)
2009 (n=1426)
2010 (n=1474)
2011 (n=1757)
2012 (n=1905)
2013 (n=2015)
2014 (n=1983)
2015 (n=2105)
2016 (n=2199)
2017 (n=2311)
2018 (n=2339)
2019 (n=2346)		 Data varies by age group.

For <1 year olds: onset [early (“0-6 days”), late (“7-89 days”) or other (≥90 days)]

For 1-49 year olds: pregnant (yes, no, unknown)

For 50-64 and ≥ 65 year olds: age group only

Source: CSF, blood, or other sterile site

 Serotype
Haemophilus influenzae 1995 (n=0)
1996 (n=5)
1997 (n=10)
1998 (n=242)
1999 (n=248)
2000 (n=306)
2001 (n=376)
2002 (n=389)
2003 (n=393)
2004 (n=418)
2005 (n=404)
2006 (n=488)
2007 (n=459)
2008 (n=487)
2009 (n=526)
2010 (n=540)
2011 (n=595)
2012 (n=606)
2013 (n=674)
2014 (n=639)
2015 (n=728)
2016 (n=767)
2017 (n=920)
2018 (n=849)
2019 (n=866)		 Age groups: < 1 yr, 1 yr, 2-4 yrs, 5-17 yrs, 18-34 yrs, 35-49 yrs, 50-64 yrs, ≥ 65 yrs

Source: CSF, blood, or other sterile site

 Serotype
Methicillin-Resistant Staphylococcus aureus The ABCs program no longer manages MRSA isolates. Find more information about MRSA surveillance.
Neisseria meningitidis 1995 (n=150)
1996 (n=253)
1997 (n=291)
1998 (n=259)
1999 (n=302)
2000 (n=237)
2001 (n=254)
2002 (n=180)
2003 (n=195)
2004(n=140)
2005 (n=156)
2006 (n=138)
2007 (n=145)
2008 (n=148)
2009 (n=122)
2010 (n=76)
2011 (n=94)
2012 (n=72)
2013 (n=51)
2014 (n=58)
2015 (n=66)
2016 (n=61)
2017 (n=53)
2018 (n=46)
2019 (n=58)		 Age groups: < 1 yr, 1 yr, 2-4 yrs, 5-17 yrs, 18-34 yrs, 35-49 yrs, 50-64 yrs, ≥ 65 yrs

Source: CSF, blood, or other sterile site

 Serogroup
Streptococcus pneumoniae 1995 (n=647)
1996 (n=492)
1997 (n=640)
1998 (n=3168)
1999 (n=3979)
2000 (n=3736)
2001 (n=3529)
2002 (n=3147)
2003 (n=3242)
2004 (n=3067)
2005 (n=3489)
2006 (n=3530)
2007 (n=3534)
2008 (n=3775)
2009 (n=3863)
2010 (n=3608)
2011 (n=3300)
2012 (n=2869)
2013 (n=3015)
2014 (n=2388)
2015 (n=2339)
2016 (n=2757)
2017 (n=2959)
2018 (n=2934)
2019 (n=2856)
Age groups: < 1 yr, 1 yr, 2-4 yrs, 5-17 yrs, 18-34 yrs, 35-49 yrs, 50-64 yrs, ≥ 65 yrs

Source: cerebrospinal fluid (CSF), blood, or other sterile site
Serotype

Minimum inhibitory concentration for select antibiotics

*Necrotizing fasciitis

** Streptococcal toxic shock syndrome

† Panton-Valentine leukocidin

§ Toxic shock syndrome toxin

Additional isolate resources

Page last reviewed: June 7, 2022
Content source: National Center for Immunization and Respiratory Diseases, Division of Bacterial Diseases