WASHINGTON ( CNN ) -- There will be more than enough doses of the H1N1 vaccine to go around in the United States , Health and Human Services Secretary Kathleen Sebelius said Thursday . According to a CNN/Opinion Corp. poll in August , 66 percent of Americans plan to get H1N1 vaccine . She said that at least 6 million doses of the vaccine will be available in the United States during the first week of October . `` The notion that because target groups are supposed to get it first , that there wo n't be enough , that we 're leaving people behind , needs to be corrected , '' Sebelius said at a White House briefing . There `` will be plenty of vaccine for everyone who wants it , '' she said . She said 250 million doses have been purchased , and `` that will be plenty . '' Most of the initial doses available in October will be FluMist nasal spray . It is approved only for healthy individuals between the ages of 2 and 49 . Pregnant women are not allowed to get this type of vaccine because it contains a live virus . Ten to 20 million doses of the vaccine will be available each week after the first week in October , Sebelius said . Sebelius aimed to dispel another myth : that the vaccine will be too expensive . `` The vaccine is paid for by the federal government , '' she said . `` The vaccine itself will be free , although some providers may charge an administrative fee . We 're asking people not to do that , and private health plans say they wo n't charge a fee , and a lot of providers are saying they wo n't charge . They understand charging a fee would be a barrier , and they say they want to lower the barriers . '' The federal government has asked the states to determine the best way to distribute the vaccine , and the government will get the vaccine to various locations . `` We will drive the vaccine to that site , '' Sebelius said , adding that 90,000 sites have been identified . Both Sebelius and Dr. Anne Schuchat of the Centers for Disease Control and Prevention urged pregnant women to get a vaccine shot . According to a CNN/Opinion Corp. poll released in late August , 66 percent of Americans plan to be vaccinated against H1N1 flu . Also Thursday , the World Health Organization said manufacturers would be able to produce 3 billion doses of H1N1 vaccine over the course of a year . The WHO said early data from clinical trials suggest that a single dose of the vaccine will be sufficient for healthy adults and older children . However , the WHO said on its Web site that `` these supplies will still be inadequate to cover a world population of 6.8 billion people in which virtually everyone is susceptible to infection by a new and readily contagious virus . '' Dr. Marie-Paule Kieny , director of the WHO 's Initiative for Vaccine Research , said that nine countries , including the United States , have offered to donate vaccines for use in developing countries and that the WHO will be coordinating the distribution . She said Thursday that distribution was expected to begin by the end of October . The WHO recommends that health workers be vaccinated first , she said . CNN 's Elizabeth Cohen and Val Willingham contributed to this report .
Sebelius : There will be plenty of H1N1 vaccine for everyone who wants it . 250 million doses have been purchased , and `` that will be plenty '' Most of the initial doses available in October will be FluMist nasal spray . The rest will come from a special program run by Merck & Co ( MRK - news - people ) called " Expanded Program on Immunization " or EIP.