MMWR:新修订腮腺炎隔离期

关于腮腺炎的隔离期，美国CDC, AAP和HICPAC 在2008年10月9日推荐为：腮腺炎症状后5天（原标准隔离期为9天）。具体内容如下：

MMWR for October 9, 2008
Updated Recommendation for Isolation of Persons with Mumps
The CDC, AAP and HICPAC now recommend a 5 day period after onset of parotitis, non-suppurative swelling and tenderness of the parotid gland, either unilateral or bilateral, for 1) isolation of persons with mumps in either community or health-care settings and 2) use of standard and droplet precautions. The best strategy for preventing mumps in both the community and among health care workers is to promote high levels of immunity via vaccination. National recommendations concerning the isolation for person with mumps for 9 days conflicted with other guidance that the infectious period of mumps extended through the 4th day after parotitis and resulted in confusion during the 2006 mumps resurgence in the US with respect to the appropriate length of case isolation. To address this issue, researchers at the CDC and American Academy of Pediatrics (AAP) reviewed scientific evidence underlying the 9-day isolation recommendation including published articles on mumps transmission; viral isolation, detection and load; and mumps in healthcare settings and, as a result, in 2007, revised the recommended isolation period for community and healthcare workers in ambulatory settings to 5 days. In February 2008, the Healthcare Infection Control Practices Advisory Committee approved a similar recommendation in in-patient settings. The evidence reviewed suggested that isolation of mumps virus is highest before or around the time of onset of parotitis, with the rate of mumps virus isolation and viral load declining rapidly during the 3 to 5 days following onset of parotitis. The risk of mumps transmission is considered to be low after 5 days; most transmission likely occurs before symptom onset or within the subsequent 5 days.