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August 2014 Back to top
August 26, 2014
We have a patient with a severe allergy to vancomycin who wants to receive zoster vaccine. According to the prescribing information, an allergy to neomycin would be a contraindication to vaccination but we are not sure about allergy to vancomycin.
Vancomycin and neomycin belong to different classes of antibiotics. An allergy to vancomycin is not a contraindication to zoster vaccine.
August 19, 2014
Would you include obstructive sleep apnea as chronic pulmonary disease which would require PPSV23 vaccination once for adults under the age of 65?
Obstructive sleep apnea alone is not an indication for vaccination with PPSV23 for persons 2 through 64 years of age. People with obstructive sleep apnea often have other pulmonary conditions (such as chronic obstructive pulmonary disease) that would put them at increased risk for invasive pneumococcal disease, for which they should be vaccinated. A table listing risk conditions and pneumococcal vaccine recommendations can be found at www.immunize.org/catg.d/p2019.pdf.
August 12, 2014
A 16-year-old has a written record of receiving two doses of DTaP at 2 and 5 months of age and one dose of Tdap at 15 years of age. Since she has had three doses of pertussis-containing vaccine, would she still need two additional doses of Td?
Since the first DTaP was received before 12 months of age and one Tdap dose has been given, this person needs one dose of Td 6 calendar months after the Tdap dose. A routine Td booster should be administered every 10 years. See IAC's new handout: DTaP, Tdap, and Td Catch-up Vaccination Recommendations by Prior Vaccine History and Age.
August 5, 2014
What are the CDC guidelines regarding use of multiple dose vaccine vials?
Vaccines in multidose vials can be used through the expiration date on the vial unless indicated otherwise by the manufacturer. For example, inactivated polio vaccine in a multidose vial can be used through the expiration date on the vial. For some vaccines, the manufacturer specifies that once the multidose vial has been entered or the rubber stopper punctured, the vaccine must be used within a certain number of days. This is commonly referred to as the "beyond-use date" (BUD). Any vaccine not used within the BUD should be discarded. Specific information regarding the BUD can be found in the product information. For example, the package insert for some inactivated influenza vaccine indicates once the stopper of the multidose vial has been pierced, the vial must be discarded within 28 days. Package inserts for vaccines can be found at www.immunize.org/packageinserts.
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July 2014 Back to top
JULY 29, 2014
We have a 10-year-old getting renal dialysis. The nephrologist will be starting her on a monoclonal antibody that interferes with C5 complement. If we administer a MCV4 and a PPSV23 now, and then give her a PCV13 in 8 weeks, will the PCV13 interfere with the efficacy of the PPSV23 or the MCV4?
Recommendations to separate MCV4 and PCV13 only apply to persons with functional or anatomic asplenia. So the best schedule is to give MCV4 (either MCV4-D or MCV4-CRM) simultaneously with PCV13, and then PPSV23 in eight weeks. ACIP recommends giving PCV13 before PPSV23 in order to maximize the immune response from PCV13. PPSV23 blunts the immune response to PCV13 if PCV13 is given after PPSV23, although in children there is a smaller effect than in adults.
JULY 22, 2014
Can you please guide me in finding storage containers and bins for vaccines?
CDC recommends the use of bins, baskets, or some other type of uncovered containers that allow for organization and air circulation for vaccines and diluents within the storage unit. Storage in any boxes or bins can help maintain temperature longer, especially if power is lost. Perforated bins may allow for better air circulation around the vaccine, thus helping to maintain correct temperature.
CDC does not have a specific recommendation for brands of containers or bins for storage of vaccine. We recommend that you contact your state immunization program, as they may find resources for purchasing this equipment. If you are a Vaccines for Children (VFC) program provider, you should contact your immunization program to ensure that you are in compliance with VFC policy.
JULY 15, 2014
We have an adult who was diagnosed with polio as a child with some residual effects. This adult will be traveling overseas and the CDC travel website recommends a dose of polio vaccine. Should he be vaccinated with polio vaccine even though he had polio in the past?
Immunity to one of the serotypes of polio does not produce significant immunity to the other serotypes. A history of having recovered from polio disease should not be considered evidence of immunity to polio. It would be appropriate to vaccinate this adult if he will be traveling to an area for which polio vaccination is recommended.
JULY 8, 2014
Should adult patients who are not asplenic but who have hypogammaglobulinemia receive Haemophilus influenzae type b (Hib) conjugate vaccine? The February 2014 Hib ACIP statement includes immunoglobulin deficiency in its "high-risk groups" for Hib disease, but the recommendations seem to imply that Hib vaccine is not necessarily for adults with immunoglobulin deficiency whose spleens are intact. Am I interpreting ACIP correctly on this matter?
You are interpreting the recommendations correctly, and age is an important factor in this issue. The recommendation for Hib vaccination for asplenia applies to persons of all ages. The recommendation for Hib vaccination for immunoglobulin deficiency applies only to children 12 through 59 months of age.
JULY 1, 2014
Many travelers do not return for their second dose of hepatitis A vaccine and present years later, about to travel again. Is there a maximum interval between the first and second doses of hepatitis A vaccine? Should the series be restarted if it has been 5 or more years since the first dose?
No. There is no maximum interval between doses of hepatitis A vaccine. An interruption in the vaccination schedule does not require restarting the entire series of any other vaccine or toxoid or addition of extra doses, with the exception of oral typhoid vaccine. See the ACIP's "General Recommendations on Immunization" at www.cdc.gov/mmwr/pdf/rr/rr6002.pdf, page 10.
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June 2014 Back to top
JUNE 24, 2014
I have a five-month-old patient who received hepatitis B vaccine at birth, at 2 months, and at 5 months of age. I realize that the third dose was given too early and so the child should be given another dose after they turn 6 months old. However, I am unclear how long I have to wait to give the fourth (repeat) dose? Is it 4 or 8 weeks?
This is addressed in the ACIP’s General Recommendations on Immunization: "Doses of any vaccine administered 5 or more days earlier than the minimum interval or age should not be counted as valid doses and should be repeated as age appropriate. The repeat dose should be spaced after the invalid dose by the recommended minimum interval” (see www.cdc.gov/mmwr/pdf/rr/rr6002.pdf, page 5 and Table 1, page 36). So in this situation you would repeat the dose 8 weeks after the invalid dose.
JUNE 17, 2014
Is there any harm in giving an extra dose of MMR to a child of age seven years whose record is lost and the mother is not sure about the last dose of MMR?
In general, although it is not ideal, receiving extra doses of vaccine poses no medical problem. Receiving excessive doses of tetanus toxoid (e.g., DTP, DTaP, DT, Tdap, or Td) can increase the risk of a local adverse reaction, however. For details, consult the ACIP's General Recommendations on Immunization at www.cdc.gov/mmwr/pdf/rr/rr6002.pdf, page 8.
Vaccination providers frequently encounter people who do not have adequate documentation of vaccinations. Providers should only accept written, dated records as evidence of vaccination. With the exception of influenza vaccine and pneumococcal polysaccharide vaccine, self-reported doses of vaccine without written documentation should not be accepted. An attempt to locate missing records should be made whenever possible by contacting previous healthcare providers, reviewing state or local immunization information systems, and searching for a personally held record.
If records cannot be located or will definitely not be available anywhere because of the patient's circumstances, children without adequate documentation should be considered susceptible and should receive age-appropriate vaccination. Serologic testing for immunity is an alternative to vaccination for certain antigens (e.g., measles, rubella, hepatitis A, diphtheria, and tetanus).
JUNE 10, 2014
For the purpose of vaccine spacing, what constitutes a month: 28 days (4 weeks), 30 days, or 31 days?
For intervals of 3 months or less, you should use 28 days (4 weeks) as a "month." For intervals of 4 months or longer, you should consider a month a "calendar month": the interval from one calendar date to the next a month later. This is a convention that was introduced on the childhood schedule in 2002 and discussed in the paper "Evaluation of Invalid Vaccine Doses" (Stokley S, Maurice E, Smith PJ, et al. American Journal of Preventive Medicine, 2004: 26[1]: 3440).
JUNE 3, 2014
Is pneumococcal polysaccharide vaccine (PPSV23) contraindicated in pregnancy? Our patient has asthma and is pregnant.
No. According to the 2014 adult immunization schedule, PPSV23 is recommended in pregnancy if some other risk factor is present (e.g., on the basis of medical, occupational, lifestyle, or other indications). See footnote 9 of the 2014 adult immunization schedule at www.cdc.gov/vaccines/schedules/downloads/adult/adult-combined-schedule.pdf.
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May 2014 Back to top
MAY 27, 2014
If a woman's rubella test result shows she is "not immune" during a prenatal visit but she has 2 documented doses of MMR vaccine, does she need a third dose of MMR vaccine postpartum?
In 2013 ACIP changed its recommendation for this situation. It is now recommended that women of childbearing age who have received 1 or 2 doses of rubella-containing vaccine and have rubella serum IgG levels that are not clearly positive should be administered 1 additional dose of MMR vaccine (maximum of 3 doses) and do not need to be retested for serologic evidence of rubella immunity. This is the only situation where ACIP recommends a third dose of MMR vaccine. MMR should not be administered to a pregnant woman.
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