Introduction. The risk for Mycobacterium tuberculosis transmission among healthcare workers (HCWs) has been well known for many years. The kind of job and the incidence of tuberculosis (TB) in the community conditions the risk of TB infection among HCWs.ntroduction. The risk for Mycobacterium tuberculosis transmission among healthcare workers (HCWs) has been well known for many years. The kind of job and the incidence of tuberculosis (TB) in the community conditions the risk of TB infection among HCWs.
Keep for 1 month: utility bills, deposit and withdrawal records. If youâre self-employed, you may need your utility, cable and cell phone bills for tax purposes. Otherwise, you can dispose of them as soon as you verify your payment was processed.
Most business owners donât know how long they should hold on to old records. According to the IRS, hereâs how long you should keep those records:Permanently: 1  general ledgers and journals. 2  payroll records, including W-2s, 940s, 941s. 3  year-end financial statements. 4  tax returns and supporting documents.5  articles of incorporation, bylaws, meeting minutes, etc. 6  retirement plan records.ost business owners donât know how long they should hold on to old records. According to the IRS, hereâs how long you should keep those records: