In 2010, a flock of seagulls (no, not the band) in St. Louis began defecating on Kings Of Leon, causing them to cancel the gig and had them worrying about possibly contracting some disease or virus from the creatures.

Now, fans of the band who attended their Seattle gig on March 28 might have got far more than they bargained for after a female concertgoer has been diagnosed with measles connected to an outbreak in B.C. The fear now is that fans who possibly came in contact with the woman could now be carrying measles, too.

NPR reports the Washington State Department Of Health has published information regarding the woman without identifying her by name. According to the April 2 notice issued by the state, the woman in her 20s "became contagious with measles March 26 after visiting a local family with measles linked to an outbreak in British Columbia."

The woman then took in the Kings Of Leon show March 28 at Seattle's Key Arena. The notice also posted a string of places visited including a Starbucks, a cafe and a Best Western. "Anyone who was in those locations at the listed times should find out if they have been vaccinated for measles or have had measles previously," the notices reads. Those who aren't vaccinated are encouraged to see a health care professional "immediately."

Measles is extremely contagious and communicable, spread through an infected persons cough, sneeze or simply breaths. The ailment can cause rash, fever, cough, eye irritation and can even lead to death. Another factor is that it can take anywhere from seven to seventeen days for a person to become ill from measles after exposure to it, during which time they can be infectious.

Jeffrey Duchin, the chief of communicable disease control for Seattle and King County Public Health in the state, says they've posted the notice due to the nature of measles. "It can stay in the air for hours after the contagious person has left," Duchin says. "If we don't treat these people, the chain of transmission can continue."

The band has made no comment regarding the March 28 gig and possible exposure. Kings Of Leon are touring in support of "Mechanical Bull" and wrap up a North American trek in New Orleans on Friday (April 11). The band begins a European leg in late May after a May 28 concert in Dubai.

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  • California: Whooping Cough

    By mid-2011, California already had some 2,000 cases of whooping cough -- 70% percent in infants under two months. Whooping cough -- also known as pertussis -- is prevented by the "P" (for pertussis) in the DPT vaccine. Babies are too young to receive vaccinations, but they can remain protected if older siblings and others around them are vaccinated. As of August, there haven't been any fatalities in 2011, though there were 10 last year. A new law requires students in 7th through 12th grades to get booster shots before entering school in 2011. <strong>More from Health.com:</strong> <a href="http://www.health.com/health/gallery/0,,20453970,00.html" target="_hplink">12 Vaccines Your Child Needs</a> <a href="http://www.health.com/health/gallery/0,,20476515,00.html" target="_hplink">12 Myths and Facts About Vaccines</a> <a href="http://www.health.com/health/gallery/0,,20513823,00.html" target="_hplink">15 Tips for Avoiding Hotel Bedbugs</a>

  • Minnesota: Measles

    Minnesota has had at least 23 cases of measles in 2011, mostly in Hennepin County, which includes Minneapolis. In one week, 17 cases were reported. The outbreak started when a 30-month-old child returned from Kenya and infected three children at a child-care center and one person who lived with him. That person went on to infect others. "Measles is remarkably contagious," says Melinda Wharton, M.D., deputy director of the National Center for Immunization and Respiratory Diseases at the Centers for Disease Control and Prevention. "You can contract measles from a room where someone with measles has been. It's possible to walk through an airport and get measles."

  • British Columbia: Mumps

    In Canada, at least 77 people in Vancouver and other areas of British Columbia came down with mumps. Mumps is a viral illness that causes face pain and swelling of the salivary glands and testicles. It's prevented by the second "M" in the MMR shot. The outbreak, mostly in young adults, was the first sizable one in the region since 2008, according to the local department of health. In the U.S., mumps outbreaks tend to occur on college campuses, at boarding schools and in other settings with close quarters, Dr. Wharton says.

  • Pennsylvania: Measles

    Pennsylvania has had 13 cases of measles this year, as of August 2011, compared with two in 2010. One person, diagnosed in July, may have initially exposed people in a Morgantown drugstore to the rash-causing virus. Since then, authorities have been tracking down people in four different counties who came into contact with the patient at restaurants, a bank, a liquor store, a grocery and a Starbucks.

  • New York: Measles

    New York State has had at least 13 measles cases in New York City alone in 2011. Half of the cases in NYC were international travelers, according to the city's Department of Health. None of the cases were fatal. But international travel is so risky in terms of measles that health authorities now recommend that 6-to-11-month-old babies, who are usually considered too young to get the shot, be inoculated before going abroad, says Dr. Wharton. Those children still need to get the normal two doses as planned, the first after their first birthday.

  • Australia: Whooping Cough

    A newborn died of pertussis in Melbourne early in 2011, the first such death since 2004, according to Australian news sources. More than 21,000 cases of pertussis have been reported in Australia so far in 2011. In 2010 there were 34,790 cases for the entire year. Nearby New Zealand has also had several recent outbreaks.

  • Indiana: Measles

    Indiana had at least 14 measles cases in 2011, mostly in the northeastern part of the state. Four cases were adults and the rest were people under 18. These are the first measles cases in Indiana since 2006, according to the Department of Health. Measles protection requires two shots four weeks apart. One dose offers 92 percent protection, which is why two doses is the standard, says James Conway, M.D., associate professor of pediatrics at the University of Wisconsin School of Medicine & Public Health, in Madison.

  • Europe: Measles

    Europe experienced a widespread measles epidemic in 2011. In the first four months of the year alone, 33 countries reported more than 6,500 cases. France had the most, with nearly 5,000 people infected from January through March. However, Belgium, Bulgaria, Serbia, Spain, and Turkey, among other nations, have reported cases since the outbreak began in September 2010.

  • Australia: Measles

    Measles is also a problem in Australia, with some 122 cases reported for this year, as of August 2011, compared with 69 in 2010 and 105 in 2009. Sydney, the nation's largest city, has had dozens of cases. One health alert was issued in April in the state of Victoria after four people infected with measles disembarked an Air Asia flight from Malaysia in Melbourne. That state has had 30 cases this year.

  • California: Measles

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