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Methicillin-resistant Staphylococcus aureus: Occupational exposure, dynamics of carriage and associated disease in livestock farmers and their household members.

Methicillin-resistant Staphylococcus aureus: Occupational exposure, dynamics of carriage and associated disease in livestock farmers and their household members. - POM-study

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
NL-OMON
Registry ID
NL-OMON33440
Enrollment
200
Registered
2009-09-02
Start date
2010-01-20
Completion date
Unknown
Last updated
2024-05-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

hospital bacteria MRSA

Interventions

None listed

Sponsors

Sint Elisabeth Ziekenhuis
Lead Sponsor

Eligibility

Age
2 Years to 99 Years

Inclusion criteria

Inclusion criteria: Individuals of any age are eligible and should be: 1 - Working with pigs or veal calves on a farm (primary exposed) or 2 - Living on a pig or veal farm and not working with the animals (secondary exposed)

Exclusion criteria

Exclusion criteria: - Treatment for colonization of MRSA in the last 3 months of any potential participant (farm will be excluded) - Being colonized with other types of MRSA than CC398

Design outcomes

Primary

MeasureTime frame
The primary outcome is the prevalence of persistent MRSA carriage in primary versus secondary exposed persons. A secondary case is defined as a household member that carries MRSA-CC398 on a farm were MRSA was found during the study period. Persistent carriage is defined as all samplings being positive for MRSA, intermittent carriage is defined as 1 to 5 out of 6 samples positive. If none of the samples return MRSA it is referred to as non-carriage. Adjustment for factors that may influence persistent carriage, e.g. carriage of methicillin susceptible S. aureus (MSSA), throat carriage, the amount of MRSA present in the nose or throat and the presence of MRSA in wounds or skin diseases will be done. Furthermore, the association between the number of positive samples during the initial 3 swabs and the carriage status at 4, 8 and 12 months is determined. This is done for both MSSA and MRSA.

Secondary

MeasureTime frame
To determine the amount of disease associated with carriage of MRSA-CC398 the occurrence of medical events will be recorded. Not only infections caused by MRSA are included in this follow-up but also visits to the general practitionar, use of antibiotics, hospital admissions etc. Adjustment for factors that may affect the occurrence of disease will be done using regression analysis. Lastly the exposure to dust on MRSA positive farms will be studied, using information from questionnaires, personal dust samplers and environmental samples from house and stable.

Countries

Netherlands

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP)