Researchers at the Center for Disease Prevention and Control have discovered that pertussis vaccine is not as effective as it used to be. (Photo: Getty Images)

Today's lashing cough is fought by yesterday's vaccine.

Researchers at the Center for Disease Control and Prevention state that the vaccine used for pertussis is less effective because the bacteria behind the disease have mutated. The researchers analyzed laboratory samples from patients with pertussis between 2000 and 2013 and found that Bordetella pertussis, which causes pertussis, has undergone genetic mutations over time.

Scientists who published their data this week in the journal "Emerging Infected Diseases" want to change it.

"The genomic data we provide will help open research into improving vaccine development and disease control strategies," the CDC authors write.

For now, children are less protected from the modern vaccine.

Dr William Schaffner, professor of preventive medicine at Vanderbilt University Medical Center, told NBC News that "pertussis vaccine is not optimal."

"We are making the best use of the vaccine, while we frantically do research to make it a better one," said Schaffner, adding that a new vaccine is nothing but ready.

School battles in different states

Some states have reported outbreaks of coughing training schools in the last two months, including:

Pertussis: What you need to know

Parents don't do it Usually I know a child has pertussis right away because it starts with a flowing nose and looks like a typical cold (Photo: Getty Images)

Pertussis is a suitor. The respiratory infection appears as a typical cold with a runny nose and low fever.The cough with the "scream" sound of someone infected gasping for air will not appear up to two weeks later, according to the CDC . But the cough loves to hang around and can last for weeks. That's how he earned the nickname – the "100-day cough".

How it spreads:

This disease is highly contagious, spreads when someone coughs, sneezes or talks and infected droplets are sprayed into the air, where other people inhale and become infected .


Doctors treat pertussis with antibiotics and the CDC emphasizes that early treatment is important so it is less severe.

The best protection against pertussis remains the DTaP vaccine, which also protects against diphtheria and tetanus for a decade

Children at higher risk

Children under the age of 1 are most at risk when they contract pertussis (Photo: Getty Images)

Of the more than 13,400 cases reported in 2018, there were 10 deaths from whooping cough, according to the CDC .

Of these, four of them were children under the age of 1.

Children are more at risk of complications and about half of children under the age of 1 are hospitalized, often because they have trouble breathing , reports the CDC. A fourth develops pneumonia. [194590019] One in 100 will die .

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