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What can explain the enormous rise in Whooping Cough cases in the U.S. in recent years? Weakening vaccines? More people not getting vaccinated?

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How about symptom-free carriers of the disease?

Dr. Jon Hallberg reviews the results of a new 

 suggesting the increase in Pertussis cases is largely due to a growth in asymptomatic carriers unknowingly spreading the bacterium.

Hallberg says the findings reflect the need for more effective vaccines.

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Hallberg's Picture of Health

A new study suggests the increase in whooping cough cases is largely due to a growth in asymptomatic carriers.

What can explain the enormous rise in Whooping Cough cases in the U.S. in recent years?

Weakening vaccines? More people not getting vaccinated?

How about symptom-free carriers of the disease?

Dr. Jon Hallberg reviews the results of a new study suggesting the increase in Pertussis cases is largely due to a growth in asymptomatic carriers unknowingly spreading the bacterium.

Hallberg says the findings reflect the need for more effective vaccines.

Hallberg's Picture of Health: Symptom-free carriers

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