News / Health

US: Cervical Cancer Vaccines Cut Rates of HPV Infections

New Studies: HPV Vaccine More Effective Than Expected

x
New Studies: HPV Vaccine More Effective Than Expectedi
X
June 21, 2013 12:29 AM
A vaccine to protect against the human papilloma virus, and the cancers it can cause, has been debated in the United States because the only way someone can contract the virus is by having sex with an infected partner. But despite the moral, ethical and political issues surrounding this vaccine, VOA's Carol Pearson says new studies show it is working.

New Studies: HPV Vaccine More Effective Than Expected

Reuters
The U.S. introduction of a vaccine to prevent cervical cancer in 2006 has reduced infections with the human papillomavirus or HPV - the sexually-transmitted virus that causes the disease - by more than half among girls and young women, U.S. health officials said on Wednesday.
 
The results were better than expected and may even suggest that unvaccinated individuals are benefiting because of a drop in the number of infections circulating, the team reported in the Journal of Infectious Diseases.
 
“This report shows that HPV works well, and the report should be a wake-up call to our nation to protect the next generation by increasing HPV vaccination rates,” Dr Thomas Frieden, director of the U.S. Centers for Disease Control and Prevention, said in a statement.
 
Frieden said only a third of U.S. girls aged 13-17 have been fully vaccinated with HPV vaccines, which include Merck's Gardasil and GlaxoSmithKline's Cervarix.
 
That compares with far higher vaccination rates in other countries such as Rwanda, where more than 80 percent of teenage girls have been vaccinated.
 
“Our low vaccination rates represent 50,000 preventable tragedies - 50,000 girls alive today will develop cervical cancer over their lifetime that would have been prevented if we reach 80 percent vaccination rates,” Frieden said.
 
In the study, a team led by the CDC's Dr. Lauri Markowitz used data from a large health survey to compare rates of infection with certain strains of the HPV virus among girls and women aged 14-19 in the four-year period before the introduction of the vaccine (2003-2006) and after its introduction (2007-2010).
 
The study largely reflects the impact of Merck's Gardasil. In 2006 it became the first HPV vaccine to win U.S. approval.
 
Gardasil protects against four HPV strains known to cause cervical cancer and genital warts. Glaxo's Cervarix won U.S. approval in 2009 and protects against two of the most common cancer-causing strains of HPV.
 
The researchers found the vaccine worked even better than expected, reducing by 56 percent the number of infections caused by strains of HPV covered by the vaccine among women and girls aged 14-19.
 
Markowitz said the higher than expected response rate could be the result of so-called “herd immunity,” in which the vaccine is also reducing infections among those who are not vaccinated. Or it could mean that the vaccine was working even among women who had not received the full three doses, which included about 49 percent of women in the study.
 
The CDC recommends routine HPV vaccination for boys and girls at age 11-12. But only about half of all U.S. girls have gotten at least one of the three recommended shots, and far fewer boys have gotten the first dose of the vaccine.
 
According to the CDC, HPV infections cause about 19,000 cancers each year among women in the United States, of which cervical cancer is the most common. HPV infections also cause about 8,000 cancers a year in U.S. men, of which throat cancers are the most common.

You May Like

Turkey: No Ransom Paid for Release of Hostages Held by IS Militants

President Erdogan hails release of hostages as diplomatic success but declines to be drawn on whether their release freed Ankara's hand to take more active stance against insurgents More

Audio Sierra Leone Ends Ebola Lockdown

Health ministry says it has reached 75 percent of its target of visiting 1.5 million homes to locate infected, educate population about virus More

US Pivot to Asia Demands Delicate Balancing Act

As tumult in Middle East distracts Obama administration, efforts to shift American focus eastward appear threatened More

Featured Videos

Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
Natural Gas Export Plan Divides Maryland Towni
X
Deborah Block
September 21, 2014 2:12 PM
A U.S. power company that has been importing natural gas now wants to export it. If approved, its plant in Lusby, Maryland, would likely be the first terminal on the United States East Coast to export liquefied natural gas from American pipelines. While some residents welcome the move because it will create jobs, others oppose it, saying the expansion could be a safety and environmental hazard. VOA’s Deborah Block examines the controversy.
Video

Video Natural Gas Export Plan Divides Maryland Town

A U.S. power company that has been importing natural gas now wants to export it. If approved, its plant in Lusby, Maryland, would likely be the first terminal on the United States East Coast to export liquefied natural gas from American pipelines. While some residents welcome the move because it will create jobs, others oppose it, saying the expansion could be a safety and environmental hazard. VOA’s Deborah Block examines the controversy.
Video

Video Difficult Tactical Battle Ahead Against IS Militants in Syria

The U.S. president has ordered the military to intensify its fight against the Islamic State, including in Syria. But how does the military conduct air strikes in a country that is not a U.S. ally? VOA correspondent Carla Babb reports from the Pentagon.
Video

Video Iran, World Powers Seek Progress in Nuclear Talks

Iran and the five permanent members of the U.N. Security Council plus Germany, known as the P5 + 1, have started a new round of talks on Iran's nuclear program. VOA State Department correspondent Pam Dockins reports that as the negotiations take place in New York, a U.S. envoy is questioning Iran's commitment to peaceful nuclear activity.
Video

Video Alibaba Shares Soar in First Day of Trading

China's biggest online retailer hit the market Friday -- with its share price soaring on the New York Stock Exchange. The shares were priced at $68, but trading stalled at the opening, as sellers held onto their shares, waiting for buyers to bid up the price. More on the world's biggest initial public offering from VOA’s Bernard Shusman in New York.
Video

Video Obama Goes to UN With Islamic State, Ebola on Agenda

President Obama goes to the United Nations General Assembly to rally nations to support a coalition against Islamic State militants in Iraq and Syria. He also will look for nations to back his plan to fight the Ebola virus in West Africa. As VOA White House correspondent Luis Ramirez reports, Obama’s efforts reflect new moves by the U.S. administration to take a leading role in addressing world crises.
Video

Video Migrants Caught in No-Man's Land Called Calais

The deaths of hundreds of migrants in the Mediterranean this week has only recast the spotlight on the perils of reaching Europe. And for those forunate enough to reach a place like Calais, France, only find that their problems aren't over. Lisa Bryant has the story.
Video

Video Westgate Siege Anniversary Brings Back Painful Memories

One year after it happened, the survivors of the terror attack on Nairobi's Westgate Shopping Mall still cannot shake the images of that tragic incident. For VOA, Mohammed Yusuf tells the story of victims still waiting for the answer to the question 'how could this happen?'
Video

Video Militant Assault in Syria Displaces Thousands of Kurds

A major assault by Islamic State militants on Kurds in Syria has sent a wave of new refugees to the Turkish border, where they were stopped by Turkish border security. Turkey is already hosting about 700,000 Syrian refugees who fled the civil war between the government and the opposition. But the government in Ankara has a history of strained relations with Turkey's Kurdish minority. Zlatica Hoke reports Turkey is asking for international help.
Video

Video Whaling Summit Votes to Uphold Ban on Japan Whale Hunt

The International Whaling Commission, meeting in Slovenia, has voted to uphold a court ruling banning Japan from hunting whales in the Antarctic Ocean. Conservationists hailed the ruling as a victory, but Tokyo says it will submit revised plans for a whale hunt in 2015. Henry Ridgwell reports from London.
Video

Video A Dinosaur Fit for Land and Water

Residents and tourists in Washington D.C. can now examine a life-size replica of an unusual dinosaur that lived almost a hundred million years ago in northern Africa. Scientists say studying the behemoth named Spinosaurus helps them better understand how some prehistoric animals adapted to life on land and in water. The Spinosaurus replica is on display at the National Geographic museum. VOA’s George Putic has more.
Video

Video Iraqi Kurdistan Church Helps Christian Children Cope find shelter in churches in the Kurdish capital, Irbil

In the past six weeks, tens of thousands of Iraqi Christians have been forced to flee their homes by Islamic State militants and find shelter in churches in the Kurdish capital, Irbil. Despite U.S. airstrikes in the region, the prospect of people returning home is still very low and concerns are starting to grow over the impact this is having on the displaced youth. Sebastian Meyer reports from Irbil on how one church is coping.


Carnage and mayhem are part of daily life in northern Nigeria, the result of a terror campaign by the Islamist group Boko Haram. Fears are growing that Nigeria’s government may not know how to counter it, and may be making things worse. More

AppleAndroid