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. Author manuscript; available in PMC: 2015 Oct 28.
Published in final edited form as: J Am Med Dir Assoc. 2013 Nov 13;15(1):47–53. doi: 10.1016/j.jamda.2013.09.011

Table 6.

Summary of Outbreaks in Assisted Living Facilities Identified by Selected State Health Departments, 2010–2013

State Respiratory Illness outbreaks Gastrointestinal Illness Outbreaks Other Outbreaks
Number Example Pathogens^ Number Example Pathogens^ Number Example Pathogens^
AZ 21 Influenza, Influenza-like illness 151 Norovirus 40 Conjunctivitis, Scabies,
CA* 7 Influenza 75 Norovirus 36 Conjunctivitis, Hand foot and mouth disease, Pediculosis, Scabies,
CO 25 Influenza, Streptococcus pneumoniae NA NA NA NA
ID 7 Human metapneumovirus, Influenza 21 Norovirus 1 Scabies
MD 49 Haemophilus influenzae, Human metapneumovirus, Influenza, Legionella pneumophila, Parainfluenza 161 Norovirus, Rotavirus, Sapovirus 10 Methicillin-resistant Staphylococcus aureus (MRSA), Scabies
MI§ 129 Influenza, Human metapneumovirus, Legionella pneumophila, Parainfluenza, Respiratory syncytial virus (RSV) 102 Norovirus NA NA
OH 18 Influenza, Legionella pneumophila 85 E.coli O157, Norovirus, Rotavirus, Salmonella Typhimurium, 5 Scabies
OR 19 Influenza, Respiratory syncytial virus (RSV) 123 Norovirus, Sapovirus NA NA
TN NA NA 13 Norovirus NA NA
TX** 4 Influenza 24 Norovirus NA NA
VA 56 Haemophilus influenzae, Human herpesvirus 1, Influenza, Human metapneumovirus, Respiratory syncytial virus (RSV), Rhinovirus 315 Clostridium difficile, Norovirus, Rotavirus 15 Hepatitis B virus, Pediculosis, Scabies, Streptococcus pyogenes
^

Listed pathogens are not exhaustive and do not represent the total outbreak experience; many outbreaks were explained as “unknown origin.”

Includes stand alone ALF and combination assisted living facility/skilled nursing facilities

Includes retirement/ALF, group homes and rehabilitation

§

Includes retirement/ALF, long term care/skilled nursing facilities, and adult foster care

*

January 1, 2010–December 31, 2012

**

August 2011 – June 30, 2013