Adenovirus Type 4 and Type 7 Vaccine Live Oral
Generic Name: Adenovirus Vaccine
VA Class: IM100
Live virus vaccine.1 Available in US as adenovirus type 4 and type 7 vaccine live oral containing viable, selected strains of human adenovirus type 4 and type 7 prepared in human diploid fibroblast cell cultures.1 Used to stimulate active immunity to the adenovirus serotypes represented in the vaccine.1
Uses for Adenovirus Type 4 and Type 7 Vaccine Live Oral
Prevention of Adenovirus Respiratory Disease
Prevention of febrile acute respiratory disease caused by adenovirus type 4 and type 7.1 4 5 6 8 Labeled by FDA for use in military populations 17 through 50 years of age;1 not commercially available for use in other individuals.14 (See Restricted Distribution under Dosage and Administration.)
Adenoviruses, especially adenovirus type 4 and type 7, commonly cause acute respiratory disease (e.g., runny nose, fever, sore throat, breathing problems, cough, headache, croup, bronchitis).5 6 9 12 105 Certain adenovirus serotypes cause other illnesses (e.g., conjunctivitis, keratoconjunctivitis, otitis media, gastroenteritis, cystitis).6 9 105 Disseminated or life-threatening infections can occur (e.g., severe pneumonia, hepatitis, meningitis, encephalitis).105 Adenoviruses spread person to person via direct contact, respiratory droplet transmission, or food and/or water contaminated with feces.5 6 9 105 Fomites also may be involved in transmission since adenoviruses survive for long periods outside of the body, including on environmental surfaces, and are unusually stable when exposed to chemical and physical agents or adverse pH conditions.5 6 9 105
Military recruits are at increased risk of acute respiratory illnesses during basic training because of several factors, including close sleeping and training environments where transmission of respiratory pathogens is facilitated, congregation of young adults arriving from wide geographic distributions who may enter basic training carrying pathogens capable of being spread to others who are immunologically susceptible, and stressful nature of basic training and military operations.2 3 5 12 13 Adenoviruses, especially adenovirus type 4 and type 7, are a well documented cause of acute respiratory illness in military recruits;2 3 4 5 12 13 adenoviruses reportedly cause 50–80% of cases of acute respiratory disease in this population.3 12 Outbreaks of adenovirus-associated disease also occur in other populations (e.g., healthcare-associated outbreaks),3 9 105 but the combination of sustained transmission and relatively high and predictable attack rates of adenovirus-associated respiratory disease appears to be unique to military basic trainees.3
US Department of Defense (DOD) requires that all enlisted US military recruits 17 through 50 years of age receive a single dose of adenovirus type 4 and type 7 vaccine live oral at the earliest opportunity upon arrival at initial entry training (basic military training), unless contraindicated (see Contraindications under Cautions).4 5 6 8 May also be recommended for other military personnel at high risk for adenovirus infection,10 but not required for cadre working at enlisted basic training sites.4
Adenovirus Type 4 and Type 7 Vaccine Live Oral Dosage and Administration
Tablets contain live adenovirus inside an enteric coating;1 designed to pass through stomach intact and release live vaccine virus in the intestine.1 Swallow tablets whole; do not chew or crush.1 7 If tablets are chewed, adenovirus will be released too soon and could expose the upper respiratory tract to live vaccine virus and result in adenovirus disease.1 7
To facilitate swallowing of vaccine tablets and reduce risk of inadvertent chewing, ingest the tablets with a small amount of water.7 Both vaccine tablets may be swallowed at the same time or swallowed separately, one after the other, whichever is easier to accomplish without chewing.7
If vaccine tablets are accidentally chewed, clear the vaccine from the mouth by swishing and swallowing several sips of water, followed by swishing antiseptic mouthwash for 30 seconds and then spitting the used mouthwash into a container.7 Consider the used mouthwash biohazardous material and handle and dispose of according to local guidelines.7 Advise individuals who inadvertently chew tablets to seek medical care if they develop symptoms of fever or respiratory infection and to inform their clinician about the chewed tablets.7
Prevention of Adenovirus Respiratory Disease
Military Personnel 17 through 50 Years of AgeOral
Administer as a single dose consisting of one tablet of adenovirus type 4 component and one tablet of adenovirus type 7 component.1 (See Preparations for description of tablet contents.)
No specific dosage recommendations.1
No specific dosage recommendations.1
Not indicated in adults >50 years of age, including geriatric adults.1
Cautions for Adenovirus Type 4 and Type 7 Vaccine Live Oral
Pregnancy.1 (See Pregnancy under Cautions.)
History of severe allergic reaction (e.g., anaphylaxis) to any vaccine component.1
Inability to swallow tablets whole without chewing.1 (See Oral Administration under Dosage and Administration.)
Fetal/Neonatal Morbidity and Mortality
Because vaccinees shed live vaccine virus1 for up to 28 days after vaccination14 and because of possibility of fetal harm if a pregnant woman is exposed to adenovirus, advise vaccine recipients to use caution for 28 days after vaccination if in close contact with a pregnant woman.1 4 5 6
Individuals with Altered Immunocompetence
Safety and efficacy not established in immunocompromised individuals.1
US Public Health Service Advisory Committee on Immunization Practices (ACIP) states that individuals with altered immunocompetence generally should not receive live vaccines since these individuals may be at increased risk for adverse reactions to such vaccines and may have diminished or suboptimal immune responses to vaccines.134 These experts state that use of live virus vaccines can be considered in patients with leukemia, lymphoma, or other malignancies if the disease is in remission and chemotherapy was terminated at least 3 months prior to vaccination.134 (See Immunosuppressive Agents under Interactions.)
US Army Military Vaccine Agency (MILVAX) states that adenovirus vaccine is not contraindicated in HIV-infected individuals and routine screening for HIV prior to administration of the vaccine is unnecessary.5
Transmission of Vaccine Virus
Fecal shedding has been detected as early as day 7 after vaccination1 and may last for up to 28 days after vaccination.14 In one study, 27 or 60% of vaccinees shed adenovirus type 4 or type 7 vaccine virus, respectively, in their stools;1 vaccine virus not detected in feces of any of these individuals by 28 days after vaccination and not detected in throat of any vaccinated individuals.1
Caution is advised for 28 days after vaccination if vaccinee is in close contact with children <7 years of age, immunocompromised individuals, or pregnant women (see Fetal/Neonatal Morbidity and Mortality under Cautions).1 5 6
Risk of Transmissible Agents in Plasma-derived Preparations
Adenovirus vaccine contains albumin human.1 Since albumin human is prepared from human blood, it is a potential vehicle for transmission of human viruses and there is a theoretical risk of transmitting the causative agent of Creutzfeldt-Jakob disease (CJD).1 Improved donor screening practices and viral elimination/inactivation procedures have resulted in plasma-derived preparations with greatly reduced risk for transmission of viruses.1 No cases of transmission of viruses or CJD have been identified for plasma-derived albumin human.1
ACIP states defer vaccination in individuals with a moderate or severe acute illness (with or without fever) until they have recovered to avoid superimposing adverse effects of the vaccine on the underlying illness or to avoid mistakenly concluding that a manifestation of the underlying illness resulted from vaccination.134
Limitations of Vaccine Effectiveness
Duration of Immunity
Improper Storage and Handling
Improper storage or handling of vaccines may reduce vaccine potency resulting in reduced or inadequate immune responses in vaccinees.134
Inspect all vaccines upon delivery and monitor during storage to ensure that the appropriate temperature is maintained.134 (See Storage under Stability.)
Do not administer vaccine that has been mishandled or has not been stored at the recommended temperature.134 If there are concerns about mishandling, contact the manufacturer or state or local immunization or health departments for guidance on whether the vaccine is usable.134
There were 5 pregnancies reported among women enrolled in a clinical study evaluating the vaccine in US military recruits ≥17 years of age.1 Four of these women (3 vaccine recipients and 1 placebo recipient) were estimated to have conceived 2–13 days prior to vaccination;1 the other woman (vaccine recipient) conceived approximately 21 weeks after vaccination.1 All 5 women delivered healthy infants with estimated gestational ages of 36–40 weeks.1
Not known whether adenovirus vaccine distributed into human milk.1
Safety and efficacy not established in infants and children <17 years of age.1
Adults 51 through 64 Years of Age
Not indicated in adults 51 through 64 years of age.1
Safety and efficacy not established in adults ≥65 years of age.1
Common Adverse Effects
Upper respiratory tract infection, headache, nasal congestion, pharyngolaryngeal pain (sore throat), cough, arthralgia, GI effects (abdominal pain, nausea, diarrhea, vomiting).1
Interactions for Adenovirus Type 4 and Type 7 Vaccine Live Oral
Specific studies not available evaluating whether concurrent administration with other vaccines affects immunologic responses or adverse effects.1 May be administered simultaneously with or at any interval before or after other vaccines, including other live virus vaccines.4 5 134
Has been administered concurrently with other vaccines containing diphtheria, tetanus, pertussis, hepatitis A, hepatitis B, human papillomavirus, influenza, measles, mumps, rubella, meningococcal, poliovirus, varicella, typhoid, or yellow fever antigens.1
Immunosuppressive agents (e.g., alkylating agents, antimetabolites, corticosteroids, radiation)
Potential for diminished or suboptimal antibody response to vaccines134
Live viral vaccines generally contraindicated in those receiving high dosages of systemic corticosteroids or when immunosuppression occurs with prolonged topical corticosteroid therapy134
Optimum interval between discontinuance of immunosuppressive therapy and subsequent administration of a live viral vaccine not determined;134 generally defer live viral vaccines for at least 3 months after immunosuppressive therapy discontinued, including chemotherapy or radiation for leukemia, other hematopoietic malignancies, or solid tumors, or after solid organ transplant134
Systemic corticosteroid therapy (prednisone or equivalent) in a dosage ≥2 mg/kg daily or ≥20 mg daily given for ≥2 weeks is considered immunosuppressive;134 delay administration of live viral vaccines for at least 1 month after such therapy discontinued134
Corticosteroid therapy involving short-term (<2 weeks), low- to moderate-dose systemic therapy (<20 mg prednisone or equivalent daily); long-term, alternate-day systemic therapy using short-acting drugs; maintenance physiologic doses (replacement therapy); topical therapy (e.g., cutaneous, ophthalmic); inhalation; or intra-articular, bursal, or tendon injections generally does not contraindicate use of live viral vaccines134
Provided in 2 separate multiple-dose bottles that are copackaged; each bottle contains tablets of only 1 of the 2 individual vaccine components.1 Vaccine tablets must be protected from moisture;1 keep bottles tightly closed and do not remove desiccant.1
Adenovirus type 4 and type 7 vaccine live oral contains live, unattenuated strains of human adenovirus type 4 and human adenovirus type 7 prepared in human diploid fibroblast cell cultures (strain WI-38) and is used to stimulate active immunity to adenovirus type 4 and type 7.1
Provided by the manufacturer as 2 separate enteric-coated tablets to be taken together: one tablet contains the adenovirus type 4 vaccine component and one tablet contains the adenovirus type 7 vaccine component.1 Following oral administration, the enteric-coated tablets pass through the stomach intact.1 The live adenoviruses are then released in the intestines where they replicate and induce active immunity in individuals with low or no preexisting neutralizing antibodies to adenovirus serotypes.1
Following single dose of adenovirus type 4 and type 7 vaccine live oral in US military recruits ≥17 years of age, 99.3% effective in preventing adenovirus type 4 febrile acute respiratory disease (ARD)1 11 and adenovirus type 4 and type 7 seroconversion rates are 94.5 and 93.8%, respectively.1 11 Duration of protection and persistence of circulating antibodies after a single dose of the vaccine not determined.5
Live vaccine virus is shed in the stools of vaccinees;1 14 fecal shedding can last for up to 28 days after vaccination.14 In one study, 27 or 60% of vaccinees shed adenovirus type 4 or type 7 vaccine virus, respectively, in their stools.1
Advice to Patients
Prior to administration of adenovirus type 4 and type 7 vaccine live oral, provide a copy of the appropriate CDC Vaccine Information Statement (VIS) to the patient. (VIS available at .)10
Advise patient that adenovirus type 4 and type 7 vaccine may not protect all vaccine recipients against adenovirus infection.1 The vaccine will not provide protection against disease caused by adenovirus serotypes not represented in the vaccine.1
Importance of taking the vaccine as directed.1 Advise patient to swallow the vaccine tablets whole with a small amount of water and without chewing or crushing them.1 7 Importance of informing clinician if not able to swallow tablets whole without chewing them.1 Advise patients to inform clinician if they accidentally chew a vaccine tablet.1
Advise patient that adenovirus type 4 and type 7 vaccine is a live virus vaccine and that vaccine virus is shed in the stool1 14 for up to 28 days following vaccination14 and can be transmitted to and cause disease in close contacts during this period.1 To minimize risk of transmission of vaccine virus, advise patients to take precautions (i.e., frequent hand washing, especially after bowel movements) for 28 days after vaccination if in close contact with children younger than 7 years, immunocompromised individuals, or pregnant women.1 (See Transmission of Vaccine Virus under Cautions.)
Importance of informing clinician if any adverse reactions occur following vaccination, including hypersensitivity reactions (e.g., difficulty breathing, hoarseness or wheezing, hives, paleness, weakness, fast heartbeat, dizziness), symptoms of respiratory infection (e.g., runny nose, fever, cough, sore throat), or severe stomach pain or diarrhea.10 Clinicians or individuals can report any adverse reactions that occur following vaccination to VAERS at 800-822-7967 or .10
Importance of informing clinician of existing or contemplated concomitant therapy, including prescription and OTC drugs, as well as any current illnesses (i.e., vomiting and/or diarrhea, weakened immune system).1 134 Importance of notifying clinician if receiving treatment that may weaken the immune system (e.g., high-dose corticosteroids, cancer chemotherapy).1 134
Importance of women informing clinician if they are or plan to become pregnant or are breast-feeding.1 Advise women to avoid pregnancy for at least 6 weeks following vaccination.1 (See Fetal/Neonatal Morbidity and Mortality under Cautions.)
Importance of informing patients of other important precautionary information.1 (See Cautions.)
Excipients in commercially available drug preparations may have clinically important effects in some individuals; consult specific product labeling for details.
Please refer to the ASHP Drug Shortages Resource Center for information on shortages of one or more of these preparations.
Distribution of adenovirus type 4 and type 7 vaccine live oral is restricted.14 (See Restricted Distribution under Dosage and Administration.)
Tablets, enteric coated
≥4.5 log10TCID50 of adenovirus type 4 per tablet or ≥4.5 log10TCID50 of adenovirus type 7 per tablet
Adenovirus Type 4 and Type 7 Vaccine, Live, Oral (copackaged in separate bottles)
AHFS DI Essentials. © Copyright 2017, Selected Revisions May 28, 2015. American Society of Health-System Pharmacists, Inc., 7272 Wisconsin Avenue, Bethesda, Maryland 20814.
1. Teva Pharmaceuticals. Adenovirus Type 4 and Type 7 vaccine, live, oral prescribing information. Sellersville, PA; 2014 Apr.
2. . O’Donnell FL, ed. Incidence of acute respiratory illnesses among enlisted service members during their first year of military service: did the 2011 resumption of adenovirus vaccination of basic trainees have an effect? MSMR Medical Surveillance Monthly Report. 2013; 20(No. 5): 14-18.
3. Hoke, CH, Hawksworth A, Snyder CE. Initial assessment of impact of adenovirus type 4 and type 7 vaccine on febrile respiratory illness and virus transmission in military basic trainees, March 2012. MSMR Medical Surveillance Monthly Report. 2012; 19(No. 3): 2-4.
4. Garman PM. Implentation guidance for administration of adenovirus type 4 and type 7 vaccine live, oral. Military Vaccine Agency. 2011 Aug 12.
5. Military Vaccine Agency. Adenovirus vaccination program questions and answers. 2012 May 2.
6. Military Vaccine Agency. Adenovirus information for healthcare providers. 2011 Mar 31.
7. Military Vaccine Agency. Accidentally chewed adenovirus type 4 and type 7 vaccine live, oral tablets. 2011 Jan 23.
8. Department of the Army. Immunizations and chemoprophylaxis. 2006 Sep 29.
9. Tablan OD, Anderson LJ, Besser R et al. Guidelines for preventing health-care assiociated pneumonia, 2003: Centers for Disease Control and Prevention. recommendations of CDC and the Healthcare Infection Control Practices Advisory Committee. MMWR Recomm Rep. 2004; 53: 1-36.
10. Centers for Disease Control and Prevention. Adenovirus vaccine information statement (interim). 2014 Jun 11. From CDC website.
11. Kuschner RA, Russell KL, Abuja M et al. A phase 3, randomized, double-blind, placebo-controlled study of the safety and efficacy of the live, oral adenovirus type 4 and type 7 vaccine, in U.S. military recruits. Vaccine. 2013; 31:2963-71. [PubMed 23623865]
12. Russell KL, Hawksworth AW, Ryan MA et al. Vaccine-preventable adenoviral respiratory illness in US military recruits, 1999-2004. Vaccine. 2006; 24:2835-42. [PubMed 16480793]
13. Radin JM, Hawksworth AW, Blair PJ et al. Dramatic decline of respiratory illness among US military recruits after the renewed use of adenovirus vaccines. Clin Infect Dis. 2014; 59:962-8. [PubMed 24991024]
14. US Food and Drug Administration. Summary basis for regulatory action. 2011 Mar 16. From FDA website.
105. American Academy of Pediatrics. 2012 Red Book: Report of the Committee on Infectious Diseases. 29th ed. Elk Grove Village, IL: American Academy of Pediatrics; 2012.
134. National Center for Immunization and Respiratory Diseases. General recommendations on immunization --- recommendations of the Advisory Committee on Immunization Practices (ACIP). MMWR Recomm Rep. 2011; 60:1-64.