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Updated
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This Week in MMWR
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October 24,
2008 / Vol. 57 / No. 42
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Infected blacklegged ticks (Ixodes spp.) typically transmit Anaplasma phagocytophilum to humans.
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Anaplasma phagocytophilum Transmitted Through Blood Transfusion
Minnesota, 2007
Anaplasma phagocytophilum causes anaplasmosis, a tickborne rickettsial disease. In November 2007, the Minnesota Department of Health was contacted about an A. phagocytophilum infection in a patient who had undergone multiple blood transfusions. This is the first published report in which transfusion transmission of A. phagocytophilum was confirmed by testing of the recipient and a donor. Although reliable evidence of transmission was provided, no cost-effective method for screening blood donors for A. phagocytophilum exists.
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MMWR Recommendations and Reports
September 19,
2008 / Vol. 57 / No. RR–8
Recommendations for Identification and
Public Health Management of Persons with
Chronic Hepatitis B Virus Infection
Serologic testing for hepatitis
B surface antigen (HBsAg) is the primary
way to identify persons with chronic
hepatitis B virus (HBV) infection.
Testing has been recommended previously
for pregnant women, infants born to
HBsAg-positive mothers, household
contacts and sex partners of HBV-infected
persons, persons born in countries with
HBsAg prevalence of >8%, persons who are
the source of blood or body fluid
exposures that might warrant
postexposure prophylaxis (e.g.,
needlestick injury to a healthcare
worker or sexual assault), and persons
infected with human immunodeficiency
virus. This report updates and expands
previous CDC guidelines for HBsAg
testing and includes new recommendations
for public health evaluation and
management for chronically infected
persons and their contacts. Routine
testing for HBsAg now is recommended for
additional populations with HBsAg
prevalence of >2%: persons born in
geographic regions with HBsAg prevalence
of >2%, men who have sex with men, and
injection-drug users. Implementation of
these recommendations will require
expertise and resources to integrate
HBsAg screening in prevention and care
settings serving populations recommended
for HBsAg testing. This report is
intended to serve as a resource for
public health officials, organizations,
and health-care professionals involved
in the development, delivery, and
evaluation of prevention and clinical
services.
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MMWR Surveillance Summaries
October 3, 2008
/ Vol. 57 / No. SS–10
Surveillance for Lyme Disease
United States, 1992–2006
Lyme disease is
the most commonly reported vectorborne
illness in the United States. The
geographic distribution of cases is
highly focused, with the majority of
reported cases occurring in the
northeastern and north-central states.
During 1992–2006, a total of 248,074
cases of Lyme disease were reported to
CDC; the number of reported cases more
than doubled during this 15-year period.
A disproportionate increasing trend was
observed in children and young males
compared with other demographic groups.
The results presented in this report
underscore the need for tick avoidance
and early treatment interventions.
Public health practitioners can use the
data presented in this report to target
prevention campaigns to populations with
increasing incidence (i.e., children and
young males).
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