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zoom RSS 妊婦に対する先天性サイトメガロウイルス感染症への警告

<<   作成日時 : 2008/01/26 00:52   >>

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 毎年数千人の胎児に先天的障害をきたしているサイトメガロウイルスCMV感染症を避けるために、妊婦や妊娠可能な女性に適切な助言をするようにと、CDCが産科婦人科医師に訴えた。就学前の子どもの唾液や尿との接触からの感染が主な原因である。米国の新生児の150人に1人が発症し、聴覚視覚障害・知的障害その他の問題をおこす。
 CDCは、特に乳幼児の唾液やオムツに接触した後は、妊婦が石鹸と水でよく手を洗うこと、6才未満の子どもとは口や頬にキスしないこと、食物、飲み物、器具を共有しないことを推奨している。毎年米国では5,000-8,000人がCMV感染と関連した障害をもって生まれている。ワクチンは無い。
 多くの子どもは乳幼児期に感染し、唾液や尿にウイルスが出て、接触により広がる。感染した子どもや大人には症状が無く感染に気づかないか、または、熱やのどの痛み、疲れやすさ、扁桃腺肥大といった症状がでることがある。性的な接触によっても感染する。
 免疫系に障害があるとウイルスによる症状が出やすい。既存の治療薬は効果的だが、妊婦への治療は副作用のために使用できない。
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U.S. CDC Urges Doctors to Combat Birth-Defect Virus
Health Officials Say Too Few Doctors Inform Pregnant Patients of the Threat
http://abcnews.go.com/Health/ReproductiveHealth/wireStory?id=4184903
By Will Dunham
Jan 24, 2008

画像WASHINGTON (Reuters) - Too few U.S doctors are telling pregnant women about steps they can take to avoid a virus that causes serious birth defects in thousands of babies each year, U.S. health officials said on Thursday.

The U.S. Centers for Disease Control and Prevention urged more obstetricians and gynecologists to counsel women who are pregnant or may become pregnant to take hygiene steps to guard against becoming infected with cytomegalovirus, or CMV.

Contact with the saliva or urine of preschool-age children is a leading cause of this viral infection among pregnant women, according to the CDC. Congenital cytomegalovirus infection is caused when an infected mother passes the virus to her fetus through the placenta.

The CDC said such infection occurs in about 1 in 150 babies born in the United States, some of whom develop hearing or vision loss, mental disability or other problems. It is the leading infectious cause of birth defects and developmental disabilities in the United States, according to the CDC.

The CDC said a nationwide survey of 305 obstetricians and gynecologists showed only 44 percent counseled patients about how to avoid CMV infection. CDC experts said this may even over-estimate how commonly doctors are addressing the issue.

The CDC recommends that pregnant women wash hands often with soap and water, especially after contact with saliva or diapers from young children, to not kiss children under age 6 on the mouth or cheek to avoid saliva, and to not share food, drinks or utensils with young children.

"A lot of people are really shocked when they hear that there are as many disabled kids from congenital CMV as there are kids with fetal alcohol syndrome or Down syndrome or spina bifida -- and people haven't heard of it," CDC epidemiologist Michael Cannon said in a telephone interview.

The CDC said 5,000 to 8,000 babies are born annually in the United States with disabilities associated with CMV infection. There is no vaccine for it, the CDC noted.

"Although some obstetricians and gynecologists talk to their patients -- pregnant women -- about congenital CMV, many of them don't. So it's really a missed opportunity," Cannon said. "The doctors could play a larger role. Clearly there's room for improvement."

Many children become infected with CMV -- a member of the herpes virus family -- in early childhood, particularly those in child-care and preschool settings. The virus then can be passed to others, including pregnant women, who come into contact with the infected child's saliva or urine.

Most healthy children and adults infected with CMV have no symptoms and may not even know that they have been infected. Others may develop a mild illness with fever, sore throat, fatigue, and swollen glands.

The virus can be transmitted through sexual contact.

People with weakened immune systems are particularly vulnerable to ill effects from the virus. The CDC said there is no treatment for pregnant women whose fetus might be infected with CMV. Existing drugs that are effective against it have serious side effects and are not approved for use in pregnant women, the CDC said.

(Editing by Maggie Fox and Cynthia Osterman)

Copyright 2008 Reuters News Service. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.

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教えて下さい。現在妊娠中(12週)です。血液検査で、CMVの数値が256と高めで、再検査になりました。小学校教員をしていて、この4月から6歳を担当しているんです。この数値は、相当高い数値なのでしょうか?
また、3年前にも、6歳をもったことがあって、その時に感染したとも考えられる数値なのでしょうか。教えて下さい。突然のコメントで、大変申し訳ございませんが、よろしくお願いします。
アロ
2009/06/07 10:22

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妊婦に対する先天性サイトメガロウイルス感染症への警告 医師の一分/BIGLOBEウェブリブログ
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