Table 1.
Confirmed and Possible Household Clusters of Invasive Group A Streptococcus, Active Bacterial Core Surveillance, 2013–2016
| ABCs site | Sex | Age, years | Race | Relationship | Interval between cases, days | emm Type | Clinical Syndrome | Underlying Medical Conditions | Survived? |
|---|---|---|---|---|---|---|---|---|---|
| Site A | F | 91 | W | Mother | … | 82 | Cellulitis | Dementia | Y |
| M | 54 | W | Son | 5 | 82 | Bacteremia | Smoker | Y | |
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| Site A | F | 53 | W | Wife | … | 49 | Cellulitis | Immunosuppressive therapy | Y |
| M | 53 | U | Husband | 30 | 49 | Cellulitis | None | Y | |
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| Site A | F | 36 | W | Mother | … | 101 | Chorioamnionitis | None | Y |
| F | 0 | W | Baby | 0 | 101 | Meningitis | None | Y | |
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| Site B | F | 70 | W | Daughter | … | 3 | Septic shock | Diabetes | Y |
| M | 95 | W | Father | 6 | 3 | Pneumonia | CVA, CKD, CSD, diabetes | Y | |
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| Site C | F | 24 | B | Granddaughter | … | 3 | Abscess (parotid gland) | AIDS, asthma, drug use, smoker | Y |
| F | 72 | B | Grandmother | 6 | 3 | Meningitis | ASCVD, CKD, diabetes | Y | |
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| Site D | M | 42 | W | Unknown relationship | … | 1 | Pneumonia | Smoker | Y |
| M | 48 | W | 0 | 1 | Pneumonia | CRI, COPD | Y | ||
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| Site E | F | 78 | U | Wife | … | 92 | Bacteremia | Asthma, obesity | Y |
| M | 82 | U | Husband | 11 | 92 | Cellulitis | CVA, diabetes, CHF | Y | |
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| Site F | F | 49 | W | Fiancée | … | 118 | Bacteremia | Asthma, diabetes | N |
| M | 67 | W | Fiancé | 12 | 118 | Abscess, septic shock | Alcohol abuse, CVA, diabetes, COPD, PVD, smoker | N | |
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| Site F | F | 92 | W | Mother | … | 12 | Pneumonia | Influenza | N |
| F | 69 | W | Daughter | 3 | 12 | Pneumonia, septic shock | Diabetes, influenza | N | |
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| Site Da Possible cluster | M | 92 | U | Unknown relationship | … | 89 | Bacteremia | Solid organ malignancy | N |
| M | 89 | W | 25 | 89 | Septic arthritis | CKD, dementia, diabetes, CHF, peripheral neuropathy | Y | ||
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| Site Da Possible cluster | F | 77 | W | Unknown relationship | … | 89 | Cellulitis | CKD | Y |
| F | 85 | W | 6 | 89 | Septic shock | CVA, Diabetes, Peripheral neuropathy | Y | ||
Abbreviations: ABCs, Active Bacterial Core Surveillance; AIDS, acquired immunodeficiency syndrome; ASCVD, atherosclerotic cardiovascular disease; B, Black; CHF, congestive heart failure; CKD, chronic kidney disease; COPD, chronic obstructive pulmonary disease; CRI, chronic renal insufficiency; CSD, chronic skin breakdown; CVA, cerebrovascular accident; F, female; M, male; PVD, peripheral vascular disease; U, Unknown; W, White.
a
Possible cluster: cases were in patients from same assisted living facility, but the patients’ apartment numbers could not be confirmed.