CDC Vaccine Panel, Satellite Light Pollution, Puppy Power

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  For Scientific American Science Quickly, I'm Kendra Peer Lewis in for Rachel Feldman.

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  You're listening to our weekly science news roundup.

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  First up, vaccines.

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  On Thursday and Friday of last week,

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  the Center for Disease Control and Prevention's Advisory Committee on Immunization Practices,

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  or ACIP, met to review and vote on recommendations for official US vaccine guidelines.

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  Here to give us an update is Lauren Young,

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  Associate Editor for Health and Medicine at Scientific American.

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  The major point of discussion was the hepatitis B birth dose of the vaccine.

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  So this has historically been, since 1991,

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  a three-dose regimen that typically begins hours after birth,

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  regardless of whether or not a parent has tested positive or negative for the virus that causes this disease.

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  So after a lot of heated discussion and deliberations and tabling this vote twice,

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  first in September and again this past Thursday,

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  the panel voted to recommend parents would need to consult with a healthcare provider about when to give a baby their first dose of the vaccine.

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  So long as the birthing parent tested negative for the disease.

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  And finally, after a lot of discussion and contention,

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  the ACIP members also passed a second vote to recommend that parents discuss the subsequent doses of that three-dose regimen with a health care provider based on blood tests of the newborn's immunity levels.

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  Those are the protective antibody titers.

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  It's important to note that we have a lot of data and studies that clearly demonstrate the previous three-dose regimen beginning at birth helped drastically reduce cases of childhood hepatitis B.

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