{"id":52238,"date":"2025-04-25T21:57:17","date_gmt":"2025-04-26T01:57:17","guid":{"rendered":"https:\/\/www.hancockhealth.org\/mayo-health-library\/polio\/"},"modified":"2026-02-04T12:04:23","modified_gmt":"2026-02-04T17:04:23","slug":"polio","status":"publish","type":"mayo","link":"https:\/\/www.hancockhealth.org\/de\/mayo-health-library\/polio\/","title":{"rendered":"Polio"},"content":{"rendered":"<div class=\"container mx-auto   wordpress-block wordpress- core-\">\n<p>Polio is an illness caused by a virus that mainly affects nerves in the spinal cord or brain stem. In its most severe form, polio can lead to a person being unable to move certain limbs, also called paralysis. It can also lead to trouble breathing and sometimes death. The disease also is called poliomyelitis.<\/p>\n<p>A vaccination effort throughout the world has led to only a small number of cases to occur around the world in recent years. But poliovirus still spreads within areas with low vaccination rates.<\/p>\n<p>The U.S. Centers for Disease Control and Prevention (CDC) publishes travel notices of countries where there is a higher risk of polio. Countries at a higher risk of polio are generally in Africa, the Middle East, and southern and central Asia.<\/p>\n<p>Vaccinated adults who plan to travel to an area where polio is spreading should get a booster dose of inactivated poliovirus vaccine (IPV). Immunity after a booster lasts a lifetime.<\/p>\n<p>Most people infected with the virus that causes polio, called poliovirus, don&#8217;t get symptoms.<\/p>\n<h3>Abortive polio<\/h3>\n<p>About 5% of people with the poliovirus get a mild version of the disease called abortive poliomyelitis. This leads to flu-like symptoms that last 2 to 3 days. These include:<\/p>\n<ul>\n<li>Fieber<\/li>\n<li>Headache<\/li>\n<li>Muskelkater<\/li>\n<li>Sore throat<\/li>\n<li>Stomachache<\/li>\n<li>Loss of appetite<\/li>\n<li>Nausea<\/li>\n<li>Vomiting<\/li>\n<\/ul>\n<h3>Nonparalytic polio<\/h3>\n<p>A more severe form of the disease, called nonparalytic polio, affects about 1% of those infected. While the illness lasts longer than a few days, it doesn&#8217;t cause paralysis. Besides having more-severe flu-like symptoms, nonparalytic polio symptoms may include:<\/p>\n<ul>\n<li>Neck pain or stiffness<\/li>\n<li>Aches or stiffness in the arms or legs<\/li>\n<li>Severe headache<\/li>\n<\/ul>\n<p>A second phase of symptoms may follow, or a person may seem to be getting better for a few days before a second phase starts. These symptoms include:<\/p>\n<ul>\n<li>Stiffness of the spine and neck<\/li>\n<li>Decreased reflexes<\/li>\n<li>Muscle weakness<\/li>\n<\/ul>\n<h3>Paralytic polio<\/h3>\n<p>This most serious form of the disease is rare. The disease begins much like nonparalytic polio. But it progresses to more-severe signs and symptoms, including:<\/p>\n<ul>\n<li>Intense pain<\/li>\n<li>Extreme sensitivity to touch<\/li>\n<li>Tingling or pricking sensations<\/li>\n<li>Muscles spasms or twitching<\/li>\n<li>Muscles weakness progressing to a limp paralysis<\/li>\n<\/ul>\n<p>Any combination of limbs may experience paralysis. But paralysis of one leg is most common, followed by paralysis of one arm.<\/p>\n<p>Depending on the severity of disease, other signs or symptoms may include:<\/p>\n<ul>\n<li>Paralysis of muscles involved in breathing<\/li>\n<li>Difficulty swallowing<\/li>\n<\/ul>\n<h3>Post-polio syndrome<\/h3>\n<p>Post-polio syndrome is the appearance of new signs or symptoms or the progression of problems. This usually happens decades after having polio. Common signs and symptoms include:<\/p>\n<ul>\n<li>Progressive muscle or joint weakness and pain<\/li>\n<li>Erm\u00fcdung<\/li>\n<li>Muscle wasting<\/li>\n<li>Breathing or swallowing problems<\/li>\n<li>Sleep-related breathing disorders, such as sleep apnea<\/li>\n<li>Lowered tolerance of cold temperatures<\/li>\n<\/ul>\n<h3>When to see a doctor<\/h3>\n<p>Signs and symptoms of polio are similar to other viral diseases that affect the nervous system. It&#8217;s important to get a timely and accurate diagnosis.<\/p>\n<p>If you had polio before, see your health care provider if you have new or worse signs or symptoms.<\/p>\n<p>Polio is caused by the poliovirus. It mainly targets nerve cells in the spinal cord and brain stem that control muscle movement. Nerve cells controlling sensation are generally not affected.<\/p>\n<p>The naturally-occurring poliovirus, called the wild-type poliovirus, has been eliminated in most countries and causes few cases of polio. Another version of the virus, called the vaccine-derived poliovirus (VDPV), is more widespread and now causes most infections worldwide. <abbr title=\"Vaccine-derived poliovirus\">VDPV<\/abbr> exists mainly in a few countries that use an oral vaccine with a weakened poliovirus.<\/p>\n<p>The weakened virus in the oral vaccine doesn&#8217;t itself cause polio, and vaccinated people rarely contract <abbr title=\"Vaccine-derived poliovirus\">VDPV<\/abbr>. Instead, <abbr title=\"Vaccine-derived poliovirus\">VDPV<\/abbr> is a new version of the virus that develops within a community or region where not enough people are vaccinated.<\/p>\n<p>Even though the weakened virus in the oral vaccine doesn&#8217;t cause illness, it can spread. If most people in a community are vaccinated, the spread of the weakened virus is controlled. If many people aren&#8217;t vaccinated, the weakened virus can move through a community for a long time. This gives the virus the chance to change, or mutate, and behave like the wild-type virus that causes illness.<\/p>\n<p>Infections from <abbr title=\"Vaccine-derived poliovirus\">VDPV<\/abbr> have been reported in the United States. In each case, the person was either not vaccinated or had a significantly weakened immune system. One case in New York in 2022 was in a county with a lower-than-average polio vaccination rate. Samples from wastewater showed that <abbr title=\"Vaccine-derived poliovirus\">VDPV<\/abbr> was spreading in some communities.<\/p>\n<p>Since 2000, polio vaccination in the United States has used an injected vaccine with an inactivated poliovirus that doesn&#8217;t create the risk for <abbr title=\"Vaccine-derived poliovirus\">VDPV<\/abbr>.<\/p>\n<h3>How polio spreads<\/h3>\n<p>People carrying the poliovirus &mdash; even people who don&#8217;t get sick &mdash; can pass along the virus in feces, also called stool, or droplets from sneezing or coughing. The virus enters another person through the mouth. The virus can spread easily. For example, the virus can spread if people haven&#8217;t washed their hands after coughing, using the toilet or before eating.<\/p>\n<p>The virus also may be in water contaminated with feces carrying the poliovirus.<\/p>\n<p>Polio mainly affects children. But anyone who hasn&#8217;t been vaccinated is at risk of getting the disease.<\/p>\n<p>Severe disease that affects the ability to breathe can cause death. Long-term complications for people who recover may include:<\/p>\n<ul>\n<li>Permanent paralysis<\/li>\n<li>Muscle shortening that causes deformed bones or joints<\/li>\n<li>Chronic pain<\/li>\n<li>Post-polio syndrome<\/li>\n<\/ul>\n<p>The most effective way to prevent polio is vaccination.<\/p>\n<h3>Polio vaccine<\/h3>\n<p>Der <abbr title=\"The Centers for Disease Control and Prevention\">CDC<\/abbr> recommends four doses of inactivated poliovirus vaccine (IPV) at the following ages:<\/p>\n<ul>\n<li>2 months<\/li>\n<li>4 months<\/li>\n<li>Between 6 and 18 months<\/li>\n<li>Between ages 4 and 6 when children are just entering school<\/li>\n<\/ul>\n<p>If your child is missing a dose, talk to your health care provider about a catch-up schedule for vaccination.<\/p>\n<h3>Adult vaccination<\/h3>\n<p>In the U.S., most adults have immunity to the poliovirus because of childhood vaccination. And U.S. adults have little chance of being exposed to the virus. But adults who are traveling to or living in a region with high rates of spreading poliovirus should receive more vaccinations.<\/p>\n<p>If you had a complete course of vaccination, you should get a one-time <abbr title=\"Inactivated poliovirus vaccine\">IPV<\/abbr> booster. You should get three <abbr title=\"Inactivated poliovirus vaccine\">IPV<\/abbr> doses if you aren&#8217;t vaccinated, didn&#8217;t receive a complete vaccination or are unsure of your vaccination status.<\/p>\n<p>Der <abbr title=\"Inactivated poliovirus vaccine\">IPV<\/abbr> schedule for adults is a second dose 1 to 2 months after the first dose. Then the third dose is 6 to 12 months after the second dose. Talk to your health care provider if you know you have an incomplete vaccination history.<\/p>\n<h3>Vaccine safety<\/h3>\n<p><abbr title=\"Inactivated poliovirus vaccine\">IPV<\/abbr> is safe for people with weakened immune systems, although it&#8217;s not certain how protective the vaccine is in cases of severe immune deficiency. Common side effects are pain and redness at the injection site.<\/p>\n<p><abbr title=\"Inactivated poliovirus vaccine\">IPV<\/abbr> can cause an allergic reaction in some people. Because the vaccine has trace amounts of the antibiotics streptomycin, polymyxin B and neomycin, it may cause a reaction in people allergic to one of these antibiotics. A person who has a severe reaction to a first dose of <abbr title=\"Inactivated poliovirus vaccine\">IPV<\/abbr> won&#8217;t get more doses.<\/p>\n<p>Signs and symptoms of an allergic reaction usually occur within minutes to a few hours after the shot. Watch for:<\/p>\n<ul>\n<li>Skin reactions, including hives and itching and flushed or pale skin<\/li>\n<li>Low blood pressure (hypotension)<\/li>\n<li>Narrowing of the airways and a swollen tongue or throat, which can cause wheezing and trouble breathing<\/li>\n<li>A weak and fast pulse<\/li>\n<li>Nausea, vomiting or diarrhea<\/li>\n<li>Schwindel oder Ohnmacht<\/li>\n<\/ul>\n<p>If you or your child has an allergic reaction after any vaccination, get medical help right away.<\/p>\n<p>Health care providers often recognize polio by symptoms, such as neck and back stiffness or abnormal reflexes or muscle weakness. To confirm the diagnosis, a lab test of a stool sample can detect the poliovirus. The virus can be found in a throat sample only during the first week of illness. So a throat sample is a less reliable source for testing.<\/p>\n<p>A test of the fluid surrounding the brain and spinal cord, or cerebrospinal fluid, may be used to rule out other diseases of the nervous system.<\/p>\n<p>Because no cure for polio exists, the focus is on increasing comfort, speeding recovery and preventing complications. Depending on the severity of disease, supportive treatments may include:<\/p>\n<ul>\n<li>Bed rest<\/li>\n<li>Pain relievers<\/li>\n<li>Hot moist packs to control muscle pain and spasms<\/li>\n<li>Portable ventilators to help with breathing<\/li>\n<li>Physical therapy exercises to prevent bone deformity and loss of muscle function<\/li>\n<li>Splints or other devices to encourage good position, or alignment, of the spine and limbs<\/li>\n<\/ul>\n<p>The signs and symptoms of moderate to severe polio &mdash; beyond typical flu-like symptoms &mdash; need attention right away. Questions that you might be prepared to answer for yourself or on behalf of your child include the following:<\/p>\n<ul>\n<li>When did the symptoms begin?<\/li>\n<li>Have the symptoms progressed or changed since you first became ill?<\/li>\n<li>Has anything improved or worsened the symptoms?<\/li>\n<li>Have you traveled recently? Where?<\/li>\n<li>Do you know of any possible exposure to an infectious disease?<\/li>\n<li>If you traveled, what vaccinations did you get before travel?<\/li>\n<\/ul>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Learn more about this contagious viral illness that affects the nervous system. Severe disease can lead to paralysis, trouble breathing and sometimes death.<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","template":"","tags":[1685,1682],"class_list":["post-52238","mayo","type-mayo","status-publish","hentry","tag-condition","tag-person-group-concept","content_type-diseases-conditions"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Polio - Hancock Health<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.hancockhealth.org\/de\/mayo-health-library\/polio\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Polio - Hancock Health\" \/>\n<meta property=\"og:description\" content=\"Learn more about this contagious viral illness that affects the nervous system. 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