Prevalence of Staphylococcus aureus and methicillin-resistant S aureus on environmental surfaces in Ohio nursing homes

Cheatham, Shanice; Thapaliya, Dipendra; Taha, Mohammed; Milliken, Katherine; Dalman, Mark; Kadariya, Jhalka; Grenier, Dylan; Smith, Tara C.

doi:10.1016/j.ajic.2019.05.021

Cited by 8 publications

(9 citation statements)

References 29 publications

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“…[45,48,50,51] A previous study found regional differences in the MRSA prevalence. [44,52] Our results showed that the prevalence of MRSA differed among LTCFs, which might re ect differences in the MRSA prevalence among the general population where each LTCF is located.…”

Section: Discussionmentioning

confidence: 79%

“…[35][36][37][38] In addition to these reports, one study previously found that LTCFs with a larger number of hospitals located nearby had a higher prevalence of MRSA than LTCFs with fewer hospitals nearby. [44] Another possible route is via the general population. [45] The prevalence of MRSA in the Japanese general population is estimated to be ≤ 5%.…”

Section: Discussionmentioning

confidence: 99%

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Association Between Length of Residence and Prevalence of Mrsa Colonization Among Residents in Geriatric Long-term Care Facilities

Sasahara

Yoshimura

et al. 2020

Preprint

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Background: A high prevalence of methicillin-resistant Staphylococcus aureus (MRSA) colonization has been reported among residents in geriatric long-term care facilities (LTCFs). Some studies indicate that MRSA might be imported from hospitals into LTCFs via resident transfer; however, other studies report that high MRSA prevalence might be caused by cross-transmission inside LTCFs. We aimed to assess which factors have a large impact on the high MRSA prevalence among residents of geriatric LTCFs.Methods: We conducted a cohort study among 260 residents of four geriatric LTCFs in Japan. Dividing participants into two cohorts, we separately analyzed (1) the association between prevalence of MRSA carriage and length of LTCF residence (Cohort 1: n=204), and (2) proportion of residents identified as MRSA negative who were initially tested at admission but subsequently identified as positive in secondary testing performed at ≥2 months after their initial test (Cohort 2: n=79).Results: Among 204 residents in Cohort 1, 20 (9.8%) were identified as positive for MRSA. Compared with residents identified as MRSA negative, a larger proportion of MRSA-positive residents had shorter periods of residence from the initial admission (median length of residence: 5.5 vs. 2.8 months), although this difference was not statistically significant (p=0.084). Among 79 residents in Cohort 2, 60 (75.9%) were identified as MRSA negative at the initial testing. Of these 60 residents, only one (1.7%) had subsequent positive conversion in secondary MRSA testing. In contrast, among 19 residents identified as MRSA positive in the initial testing, 10 (52.6%) were negative in secondary testing.Conclusions: The prevalence of MRSA was lower among residents with longer periods of LTCF residence than among those with shorter periods. Furthermore, few residents were found to become MRSA carrier after their initial admission. These findings highlight that MRSA in LTCFs is most likely to be associated with resident transfer rather than spread via cross-transmission inside LTCFs.

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Section: Discussionmentioning

confidence: 79%

Section: Discussionmentioning

confidence: 99%

Association Between Length of Residence and Prevalence of Mrsa Colonization Among Residents in Geriatric Long-term Care Facilities

Sasahara

Yoshimura

et al. 2020

Preprint

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show abstract

“…The main route would likely be importation from hospitals, which is largely supported by the results of previous studies [ 35 – 38 ]. In addition to these reports, one study previously found that LTCFs with a larger number of hospitals located nearby had a higher prevalence of MRSA than LTCFs with fewer hospitals nearby [ 44 ]. Another possible route is via the general population [ 45 ].…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, regional MRSA epidemics of community-acquired strains have recently occurred in Japan, which might affect MRSA prevalence [ 45 , 48 , 50 , 51 ]. A previous study found regional differences in the MRSA prevalence [ 44 , 52 ]. Our results showed that the prevalence of MRSA differed among LTCFs, which might reflect differences in the MRSA prevalence among the general population where each LTCF is located.…”

Section: Discussionmentioning

confidence: 99%

Association between length of residence and prevalence of MRSA colonization among residents in geriatric long-term care facilities

Sasahara

Yoshimura

et al. 2020

BMC Geriatr

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Background A high prevalence of methicillin-resistant Staphylococcus aureus (MRSA) colonization has been reported among residents in geriatric long-term care facilities (LTCFs). Some studies indicate that MRSA might be imported from hospitals into LTCFs via resident transfer; however, other studies report that high MRSA prevalence might be caused by cross-transmission inside LTCFs. We aimed to assess which factors have a large impact on the high MRSA prevalence among residents of geriatric LTCFs. Methods We conducted a cohort study among 260 residents of four geriatric LTCFs in Japan. Dividing participants into two cohorts, we separately analyzed (1) the association between prevalence of MRSA carriage and length of LTCF residence (Cohort 1: n = 204), and (2) proportion of residents identified as MRSA negative who were initially tested at admission but subsequently identified as positive in secondary testing performed at ≥2 months after their initial test (Cohort 2: n = 79). Results Among 204 residents in Cohort 1, 20 (9.8%) were identified as positive for MRSA. Compared with residents identified as MRSA negative, a larger proportion of MRSA-positive residents had shorter periods of residence from the initial admission (median length of residence: 5.5 vs. 2.8 months), although this difference was not statistically significant (p = 0.084). Among 79 residents in Cohort 2, 60 (75.9%) were identified as MRSA negative at the initial testing. Of these 60 residents, only one (1.7%) had subsequent positive conversion in secondary MRSA testing. In contrast, among 19 residents identified as MRSA positive in the initial testing, 10 (52.6%) were negative in secondary testing. Conclusions The prevalence of MRSA was lower among residents with longer periods of LTCF residence than among those with shorter periods. Furthermore, few residents were found to become MRSA carrier after their initial admission. These findings highlight that MRSA in LTCFs might be associated with resident transfer rather than spread via cross-transmission inside LTCFs.

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“…The authors reported that dental plaque colonization preceded oropharyngeal colonization and acted as a potential reservoir for lower respiratory tract infection and the development of pneumonia [13]. Researchers in the United States reported a 28.6% prevalence of S. aureus on environmental surfaces in seven nursing homes [14]. S. aureus is primarily a nosocomial infection acquired in institutions such as nursing homes.…”

Section: Introductionmentioning

confidence: 99%

The effect of oral care intervention on pneumonia hospitalization, Staphylococcus aureus distribution, and salivary bacterial concentration in Taiwan nursing home residents: a pilot study

Chiang

Huang

et al. 2020

BMC Infect Dis

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Background: Elevated Staphylococcus aureus and oral bacterial concentrations are known to correlate with pneumonia hospitalization in nursing home residents. However, the effects of a professional oral care intervention on these factors remain unclear. The aims of this quasi-experimental study were to compare bacterial concentrations in saliva and sputum, oral health status, distribution of Staphylococcus aureus, and pneumonia status before and after a professional oral care intervention. Methods: A purposive sample of residents from two nursing homes was divided into an intervention group that received a weekly professional oral care intervention and a control group. Oral bacterial concentration was determined by real-time polymerase chain reaction. The Staphylococcus aureus distribution was determined by bacterial culture and matrix-assisted laser desorption/ionization-time of flight mass spectrometry. After data collection, a statistical analysis was performed to evaluate the effect of the intervention.

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Prevalence of Staphylococcus aureus and methicillin-resistant S aureus on environmental surfaces in Ohio nursing homes

Cited by 8 publications

References 29 publications

Association Between Length of Residence and Prevalence of Mrsa Colonization Among Residents in Geriatric Long-term Care Facilities

Association Between Length of Residence and Prevalence of Mrsa Colonization Among Residents in Geriatric Long-term Care Facilities

Association between length of residence and prevalence of MRSA colonization among residents in geriatric long-term care facilities

The effect of oral care intervention on pneumonia hospitalization, Staphylococcus aureus distribution, and salivary bacterial concentration in Taiwan nursing home residents: a pilot study

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