Welcome to the Vaccines and Immunizations website.
Skip directly to the search box, site navigation, or content.

Department of Health and Human Services
Centers for Disease Control and Prevention


Vaccines & Immunizations

Vaccines and Preventable Diseases:

Current Vaccine Shortages & Delays
Last Updated May 5, 2009

receive email updates when changes are made to this pageGet Email Updates 

This web page contains the latest national information about vaccine supplies and provides guidance to healthcare providers who are facing vaccine shortages or delays.

*Note: Only those vaccines included on the recommended childhood and adolescent immunization schedule are included in this update.

Chart of Vaccines* in Delay or Shortage

(Vaccines are listed in order used for the Childhood and Adolescent Immunization Schedule.)

National Vaccine Supply Shortages
Vaccine
Shortage
Temporary Change From Routine Recommendation
Hepatitis B

See note 1,2

No Change in Routine Recommendation for children or adults.
Updated status on US supply of pediatric hepatitis B vaccine Microsoft Word file. (.DOC 29KB) New May 5, 2009
Rotavirus No  
Diphtheria, Tetanus, & Pertussis (DTaP and Tdap) No  
Td No  
Haemophilus influenzae type B (Hib) See note 3
Pneumococcal Conjugated (PCV) No  
Pneumococcal Polysaccharide (PPV) No  
Inactivated Polio (IPV) No  
Measles, Mumps, & Rubella (MMR) See note 4
See Q&As about Monovalent M-M-R Vaccines During Supply Shortages Feb 9, 2009
Influenza No
Current information about influenza, see www.cdc.gov/flu
Varicella/Zoster See note 5

No change in Routine Recommendation. Zoster vaccine is available for ordering; however, the manufacturer is experiencing shipping delays. July 11, 2008

Hepatitis A See note 6
No change in Routine Recommendation.
Conjugated Meningococcal (MCV4) No  
Human Papillomavirus (HPV) No  

Note1: In February 2009, both Merck and GSK experienced an inability to fill orders for pediatric Hepatitis B vaccine, resulting in backorders. CDC has released doses from its monovalent pediatric Hepatitis B vaccine stockpiles to each manufacturer to support private and public sector vaccine usage through March. Merck expects supplies of pediatric Recombivax HB® to be limited during the remainder of 2009 and does not expect to return to a full supply until some time in 2010. GSK expects to be able to meet the US market demand for monovalent Hepatitis B vaccine through the end of May with its pediatric Hepatitis B vaccine (Pediatric Engerix-B®), and is working closely with CDC to determine how much additional monovalent Hepatitis B product can be supplied to the US market during the second half of 2009. March 2, 2009

Note2: In December 2008, Merck communicated with CDC that it expected to deplete available adult and dialysis formulations of their hepatitis B vaccine, Recombivax HB® in the first quarter of 2009. Once depleted, these formulations will be unavailable for the remainder of 2009. Supply of GSK's Adult hepatitis B vaccine (Adult Engerix-B®) and Adult hepatitis A/hepatitis B combination vaccine (Twinrix®) is sufficient to meet demand for routine adult usage of this vaccine as well as CDC's ongoing High Risk Adult Hepatitis B Initiative. Updated March 2, 2009

Note3: Merck is working to restore market availability of Hib-containing vaccines, PedvaxHIB® and Comvax®, but the availability of these vaccines may be subject to a further delay, with Merck's current estimate of availability being mid to late 2009. In response to the shortage, CDC and AAP recommend deferral of the booster dose at 12 through 15 months of age except in high risk groups. Sanofi pasteur currently is providing sufficient Hib vaccine ActHIB® and Pentacel) to cover the 3 dose series through mid 2009, and has developed a supply plan to support reinstatement of the booster dose some time in mid 2009, using a combination of their Hib-containing products. CDC will work closely with sanofi pasteur to determine available supply and options for catch up. Updated March 2, 2009

Note4: In December 2008, Merck communicated with CDC that it was not producing or taking orders for the monovalent vaccines ATTENUVAX® (measles vaccine), MUMPSVAX® (mumps vaccine) and MERUVAX® (rubella vaccine).  Merck has not yet made a decision about the future availability of these three monovalent vaccines. Updated March 2, 2009

Note5: There is adequate supply of Varivax® (varicella vaccine) to fully implement the recommended 2-dose immunization schedule, including catch-up, for all age groups. ProQuad® (MMRV) will not be available in 2009. Zostavax® (zoster vaccine) is available for ordering; however, the manufacturer is experiencing shipping delays. Merck anticipates a return to normal shipping times for Zostavax® in mid-2009. Merck vaccine supply status including specific shipping status information for zoster vaccine is updated weekly and may be found at www.merckvaccines.com External Web Site Policy. Updated March 2, 2009

Note6: Merck & Co previously had experienced production delays that resulted in temporarily not accepting orders for Pediatric and Adult hepatitis A vaccines (Pediatric & Adult VAQTA®). As of December 1, 2008, Merck's Pediatric/Adolescent formulation of hepatitis A vaccine, VAQTA®, is available for ordering. Merck estimates that the Adult formulation of VAQTA® may be available in the second quarter 2009. GSK production and supply of their Pediatric and Adult hepatitis A vaccine (Pediatric & Adult Havrix®) and their Adult hepatitis A/hepatitis B combination vaccine (Twinrix®) are in adequate supply to meet demand. Updated March 2, 2009

top of page

Why are there vaccine shortages?

In the United States shortages of many vaccines in the recommended childhood immunization schedule occurred in the past. Some of these shortages were widespread while others were localized. Reasons for these shortages were multi-factorial and included companies leaving the vaccine market, manufacturing or production problems, and insufficient stockpiles. Consequently, some shortages were only specific to one manufacturer.

Shortages of several of these vaccines necessitated temporary changes in recommendations for their use. During that period, summary information about the shortages including projected duration and recommendations for temporary changes in the childhood immunization schedule were provided.

top of page

Who can I contact to answer my questions?

  • Questions including those dealing with changes in child care and school requirements necessitated by vaccine supply problems when they occur can be answered by
    State Health Department immunization programs at www.cdc.gov/mmwr/international/relres.html

    General immunization questions can be answered by
    The CDC Contact Center at 1-800-CDC-INFO
    (1-800-232-4636) English and Español

How often will this information be updated?
This page on the NCIRD web site www.cdc.gov/vaccines/vac-gen/shortages/ is updated as needed to provide public information on vaccine shortages and/or delays.

The FDA's web page on Biological Product Shortages www.fda.gov/cber/shortage/shortage.htm External Web Site Policy provides additional information regarding regulatory issues related to vaccine supply.

top of page

Acronyms and Abbreviations

AAFP - American Academy of Family Physicians
AAP - American Academy of Pediatrics
ACIP - Advisory Committee on Immunization Practices
CDC - Centers for Disease Control and Prevention
FDA - Food and Drug Administration
GAO - United States General Accounting Office
MMWR - Morbidity and Mortality Weekly Report
NCIRD - National Center for Immunization and Respiratory Diseases
TTY - teletypewriter
Other acronyms

top of page

Related Information

top of page

Other Shortages and Delays

top of page

External Web Site Policy  Links to non-federal organizations are provided solely as a service to our users. These links do not constitute an endorsement of these organizations or their programs by CDC or the federal government, and none should be inferred. CDC is not responsible for the content of the individual organization Web pages found at these links.

This page last modified on May 5, 2009
Content last reviewed on February 10, 2009
Content Source: National Center for Immunization and Respiratory Diseases

Quick Links

Safer Healthier People

Centers for Disease Control and Prevention 1600 Clifton Rd, Atlanta, GA 30333, U.S.A
Public Inquiries: 1-800-CDC-INFO (232-4636); 1-888-232-6348 (TTY)

Vaccines and Immunizations