{"id":3253,"date":"2026-07-28T19:43:40","date_gmt":"2026-07-28T19:43:40","guid":{"rendered":"https:\/\/corporate-movers-usa.com\/?p=3253"},"modified":"2026-07-28T19:43:40","modified_gmt":"2026-07-28T19:43:40","slug":"what-is-the-dose-zero-heres-what-you-need-to-know-about-pa-s-new-recommendations-for-early-measles-vaccination","status":"publish","type":"post","link":"https:\/\/corporate-movers-usa.com\/?p=3253","title":{"rendered":"What is the \u2018dose zero\u2019? Here\u2019s what you need to know about Pa.\u2019s new recommendations for early measles vaccination"},"content":{"rendered":"<div>\n<div>\n<div><audio><\/audio><\/div>\n<\/div>\n<p>As Pennsylvania grapples with a measles outbreak that has sickened 130 residents, state health officials are recommending some parents vaccinate young children early to provide extra protection against the highly contagious disease.<\/p>\n<p>Read more <a href=\"https:\/\/corporate-movers-usa.com\/?p=3251\">A property manager used rent price-setting algorithms that were banned in Philly last year, lawsuit says<\/a><\/p>\n<div><\/div>\n<p>Children as young as 6 months who live in or whose parents plan travel to affected counties should get a \u201cdose zero\u201d of the measles, mumps, and rubella shot, health officials said last month. Typically, children get their first measles shot at a year old.<\/p>\n<div><\/div>\n<div><\/div>\n<p>Measles infects up to 90% of unvaccinated people who are exposed to it, and complications can be particularly serious for young children.<\/p>\n<div><\/div>\n<p>Here\u2019s what you need to know about the \u201cdose zero.\u201d<\/p>\n<div><\/div>\n<div>\n<h3>What is the dose zero?<\/h3>\n<\/div>\n<div><\/div>\n<p>A \u201cdose zero\u201d MMR shot is an early vaccine given at 6 months old. Usually, a child receives the first MMR dose at 12 months old, then again between 4 and 6 years old.<\/p>\n<div><\/div>\n<p>Babies receive some antibodies from their mothers that can interfere with vaccines that contain weakened versions of a live virus, including the MMR vaccine, said Katie Lockwood, a Children\u2019s Hospital of Philadelphia pediatrician. <\/p>\n<div><\/div>\n<div><\/div>\n<p>Those antibodies mean that an MMR shot given before 12 months old can be slightly less effective at providing lasting immunity.<\/p>\n<div><\/div>\n<p>But a \u201cdose zero\u201d can still provide babies with some protection that\u2019s especially crucial in an outbreak.<\/p>\n<div><\/div>\n<p>\u201cWhat we see from that dose zero MMR is that you have some short-term protection that we believe will protect you during that period when you\u2019re traveling to an outbreak area or internationally,\u201d Lockwood said. (It\u2019s long been recommended that parents opt for a dose zero if they\u2019re planning to travel internationally with an infant.)<\/p>\n<div><\/div>\n<p>\u201cBut it\u2019s not generating the same long-term immune response that we see when we give the routine vaccine at age 12 months.\u201d<\/p>\n<div><\/div>\n<div>\n<h3>What happens after a dose zero?<\/h3>\n<\/div>\n<div><\/div>\n<p>Babies still need a second dose of the MMR vaccine at 12 months old to provide lasting protection against measles, Lockwood said. <\/p>\n<div><\/div>\n<p>Normally, kids then get their last MMR dose at around 4 to 6 years old. That dose is timed to protect children who may not have gotten vaccinated as babies\u2014in school, they\u2019re more at risk of contracting an infectious disease, Lockwood said. <\/p>\n<p>Read more <a href=\"https:\/\/corporate-movers-usa.com\/?p=3249\">Ex-Eagles coach Doug Pederson joins CBS in a surprising role as he eyes a return to the NFL<\/a><\/p>\n<div><\/div>\n<div><\/div>\n<p>But in an outbreak,  that children get their second dose earlier as well \u2014 as soon as 28 days after their first dose.<\/p>\n<div><\/div>\n<p>CHOP is now routinely recommending that children receive their final MMR dose at 15 months old. With 13 measles cases reported in Chester County since April, and 75 cases reported just to the west in Lancaster County, Philadelphia-area parents are close enough to the outbreak that many are opting in, she said.<\/p>\n<div><\/div>\n<p>\u201cIt\u2019s still the parents\u2019 decision. But there\u2019s not really a downside to giving it early,\u201d Lockwood said. \u201cEspecially with all of these cases, a lot of parents are reporting that it makes them feel more comfortable, knowing that their child is fully protected.\u201d<\/p>\n<div><\/div>\n<div>\n<h3>How are area families reacting to the new recommendations?<\/h3>\n<\/div>\n<div><\/div>\n<p>Lockwood, who practices in Flourtown, Montgomery County, said she\u2019s fielded \u201creally thoughtful\u201d questions from parents as they decide whether to vaccinate early.<\/p>\n<div><\/div>\n<p>\u201c[They ask], \u2018Why wasn\u2019t this the standard the whole time?\u2019\u201d she said. \u201cI always explain that it\u2019s because measles wasn\u2019t really around so we didn\u2019t have to worry about it the way that we\u2019re worrying about it now. Measles wasn\u2019t a real threat to most children in their daily lives in the United States.\u201d<\/p>\n<div><\/div>\n<div><\/div>\n<p>Lockwood said that some parents who had opted to delay or forego MMR vaccinations have changed their minds in light of the outbreak. <\/p>\n<div><\/div>\n<p>\u201cChester County is really not very far away from most of my patients,\u201d she said. \u201cIt does make it feel much more of a realistic threat to their child.\u201d <\/p>\n<div><\/div>\n<p>Lockwood also tries to reassure parents who are still hesitant about vaccination. <\/p>\n<div><\/div>\n<p>\u201cThe MMR vaccine, because of some of the misinformation that has circulated around it for years, is one of the most studied vaccines,\u201d she said. \u201cFor anyone who is worried about vaccine safety, this is really one with a wealth of safety data available. It\u2019s been proven so many times to be safe and effective.\u201d<\/p>\n<div><\/div>\n<div>\n<h3>Where can Pennsylvanians get vaccinated against measles?<\/h3>\n<\/div>\n<div><\/div>\n<p>MMR vaccines are generally available at doctors\u2019 offices, urgent-care centers, federally funded health centers, and pharmacies. Philadelphia residents can get a free MMR vaccine at any city health center by calling 215-685-2933. Outside the city, county and municipal health departments and state health centers also offer the vaccine. <\/p>\n<p>Read more <a href=\"https:\/\/corporate-movers-usa.com\/?p=3247\">Philadelphia Managing Director Adam Thiel steps down from Parker administration<\/a><\/p>\n<div><\/div>\n<p>It\u2019s recommended that residents call ahead to clinics to check on availability.<\/p>\n<div><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>State health officials are recommending some parents vaccinate young children early to provide extra protection against the highly contagious disease.<\/p>\n","protected":false},"author":1,"featured_media":3252,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-3253","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What is the \u2018dose zero\u2019? Here\u2019s what you need to know about Pa.\u2019s new recommendations for early measles vaccination - Corporate Movers USA<\/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:\/\/corporate-movers-usa.com\/?p=3253\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is the \u2018dose zero\u2019? 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