Posts Tagged ‘ measles ’

Vaccine Education Programs May Not Be Effective

Wednesday, March 5th, 2014

Parents who are hesitant to vaccinate their children–or who have decided against vaccination–are not likely to be swayed by awareness programs meant to educate parents about the importance of giving kids vaccines against preventible diseases like measles and mumps.  The programs, according to new research published in the journal Pediatrics, can actually make parents express more reservations about vaccines. More from Reuters:

The study’s lead author told Reuters Health that the research is an extension of his work in political science that found it is difficult to correct people’s misinformation.

“We found political misinformation is often very difficult to correct and giving people the correct information can backfire,” said Brendan Nyhan, a political scientist at Dartmouth College in Hanover, New Hampshire.

“We were interested in seeing if the messages public health agencies were putting out were effective,” he said.

Specifically, Nyhan and his colleagues examined public health campaigns about the measles-mumps-rubella (MMR) vaccine.

Although national U.S. MMR vaccination rates are high, the researchers write in Pediatrics that there are states where the rate dips below 90 percent, which is a commonly used threshold for so-call herd immunity. Herd immunity is the point where high vaccination rates within a population may also offer protection to the unvaccinated.

They also write that maintaining high levels of MMR vaccination is important because of the increasing number of measles cases reported in the U.S. and recent outbreaks in the UK. Measles is a highly contagious respiratory disease that can lead to death.

Another study published by Centers for Disease Control and Prevention (CDC) researchers in the same journal found that vaccinating U.S. kids born in 2009 according to the routine immunization schedule will save about $70 billion and prevent over 40,000 early deaths and over 20 million cases of disease.

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High Number of Measles Cases Reported in California

Monday, February 24th, 2014

At least 15 cases of measles have been reported in California since January 1 of this year, a marked increase from the same time last year, by which time only two cases had been documented.  More from UPI:

Dr. Ron Chapman, state health officer and director of California Department of Public Health in Sacramento said the cases occurred throughout California.

“Immunization is the best defense against measles, with 99 percent of persons developing immunity after two doses,” Chapman said in a statement. “With an outbreak in the Philippines and measles transmission ongoing in many parts of the world outside of North and South America, we can expect to see more imported cases of this vaccine-preventable disease.”

Imported cases can spread to the community, especially among unvaccinated persons, including infants too young to be vaccinated, Chapman said.

High immunization rates in California have kept preventable childhood diseases, such as measles, at record lows during the past 20 years.

In 2000, measles was declared eliminated in the United States, but the number of cases per year in California ranged from four to 40 cases due to infected visitors or unvaccinated Americans visiting countries where measles still occurs.

Among the California cases with measles onset in 2014, three traveled to the Philippines, where a large outbreak is occurring, and two traveled to India, where measles is endemic, Chapman said.

Measles is a highly contagious viral disease that is spread through the air when someone who is ill with the disease coughs or sneezes.

It is recommended children get their first dose of MMR — measles, mumps, rubella — vaccine at 12 to 15 months. The second dose of MMR is usually administered before children start kindergarten at ages 4 to 6. Immunized adults do not need boosters.

Image: Baby being vaccinated, via Shuterstock

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Measles Remains Global, Domestic Threat 50 Years After Vaccine

Tuesday, December 10th, 2013

A half century after the vaccine against measles was introduced in 1963, the life-threatening disease has been eliminated in the U.S. but remains a global threat, claiming the lives of 430 children – 18 every hour – every day.  The international presence of measles is of domestic concern as well, putting families who choose not to have their children vaccinated at risk of exposure if they encounter an infected person who brought the disease from another country. More from the Centers for Disease Control and Prevention:

In an article published on December 5 by JAMA Pediatrics, CDC’s Mark J. Papania, M.D., M.P.H., and colleagues report that United States measles elimination, announced in 2000, has been sustained through 2011. Elimination is defined as absence of continuous disease transmission for greater than 12 months. Dr. Papania and colleagues warn, however, that international importation continues, and that American doctors should suspect measles in children with high fever and rash, “especially when associated with international travel or international visitors,” and should report suspected cases to the local health department. Before the U.S. vaccination program started in 1963, measles was a year-round threat in this country. Nearly every child became infected; each year 450 to 500 people died each year, 48,000 were hospitalized, 7,000 had seizures, and about 1,000 suffered permanent brain damage or deafness.

People infected abroad continue to spark outbreaks among pockets of unvaccinated people, including infants and young children. It is still a serious illness: 1 in 5 children with measles is hospitalized. Usually there are about 60 cases per year, but 2013 saw a spike in American communities – some 175 cases and counting – virtually all linked to people who brought the infection home after foreign travel.

“A measles outbreak anywhere is a risk everywhere,” said CDC Director Tom Frieden, M.D., M.P.H. “The steady arrival of measles in the United States is a constant reminder that deadly diseases are testing our health security every day. Someday, it won’t be only measles at the international arrival gate; so, detecting diseases before they arrive is a wise investment in U.S. health security.

Image: Child getting a vaccine, via Shutterstock

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CDC Report: Most Kindergartners Get Vaccinated

Friday, August 24th, 2012

Last school year, most kindergarteners in the United States received the recommended vaccines for measles and other diseases, according to a new report from the Centers for Disease Control and Prevention (CDC).

But the CDC also warned that pockets of unvaccinated children could set the stage for disease outbreaks.

From Reuters:

Last year, there were 17 outbreaks of measles and 222 measles cases in the United States, the highest since 1996, the CDC said.

Most of the cases involved unvaccinated patients who contracted measles in other countries, highlighting the importance of high vaccination rates among U.S. school children, said Dr. Melinda Wharton, deputy director of the CDC’s National Center for Immunization and Respiratory Diseases.

“It is of concern when we have these communities in the United States where there’s enough people who have made this decision [not to vaccinate] that if the measles virus is imported from overseas, that it could actually spread and cause an outbreak,” Wharton said.

All 50 states offer medical exemptions to vaccines, and some states provide religious and philosophical exemptions as well, Wharton said.

Reuters continued:

Some parents who skip or delay vaccines for their children cite safety concerns, such as the belief of a link between vaccines and autism. The CDC says research has not uncovered a link between the two.

“Based on all the science that has been done to date, and there’s been a lot of it, there’s no evidence that vaccines are a causal factor,” Wharton said.

Image: Boy receiving shot via Shutterstock.

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CDC: 2011 Was Worst Measles Year Since 1996

Friday, April 20th, 2012

The Centers for Disease Control and Prevention reported today that the number of measles cases in the U.S. is at its highest level in 15 years.  The increase is believed to be due to falling vaccination rates in Europe, with Americans catching the highly contagious disease from Europeans or during travel.

The Associated Press reports that the 222 cases in 2011 was significantly higher than the 60 cases that are seen in a typical year:

Measles is highly contagious. The virus spreads easily through the air, and in closed rooms, infected droplets can linger for up to two hours after the sick person leaves.

It causes a fever, runny nose, cough and a rash all over the body. In rare cases, measles can be deadly, and is particularly dangerous for children. Infection can also cause pregnant women to have a miscarriage or premature birth.

No measles deaths were reported in the U.S. last year; the last one occurred in 2003. But about a third of the 2011 cases were hospitalized, and one child was touch-and-go for about a week before finally recovering, one CDC official said.

Officials traced 200 of last year’s 222 cases to measles in another country, said Schuchat, director of the CDC’s Office of Infectious Diseases. The largest outbreak was in the Minneapolis area where 21 cases were traced to a child who got sick after a trip to Kenya.

Image: Airplane, via Shutterstock.

 

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