- Some adults were never vaccinated as children and immunity can fade over time, making adults more susceptible to vaccine-preventable diseases. Newer vaccines have also become available.
- Adult immunization recommendations include vaccines for influenza, pneumococcus, human papillomavirus, hepatitis A/B, herpes zoster, and tetanus, diphtheria, pertussis based on age, risk factors and other criteria.
- Vaccinating adults can contribute to herd immunity and help reduce the burden of adult vaccine-preventable diseases.
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Adult immunisation
1. • Some adults were never vaccinated as children
• Newer vaccines were not available when some
adults were children
• Immunity can begin to fade over time
• As we age, we become more susceptible to
serious disease caused by common infections
(e.g., flu, pneumococcus)
• Contributes to herd immunity in VPDs
Why some adults need vaccines?
2. • Build on success of
infant/childhood,
adolescent program
• New vaccines targeted
at adults
• Recognition of the
burden of adult
vaccine-preventable
disease
Invigoration of Adult Immunization
2
5. Vaccine / Age group 19-26 yrs 27-49 yrs 50-59 yrs 60-64 yrs > 65 yrs
Tetanus, Diptheria, Pertussis (Tdap)
Substitude one time dose of Tdap with Td,
then booster with Td every 10 years
Td booster
every 10 yrs
Human Pappiloma Vaccine 3 doses
Varicella 2 doses
Zoster 1 dose
Measles, Mumps, Rubella 1 or 2 doses 1 dose
Influenza 1 dose annually
Pnemococcal (Polysaccharide) 1 or 2 doses 1 dose
Hepatitis A 2 doses
Hepatitis B 3 doses
Meninngicoccal 1 or more doses
5/17/2018 5
ACIP Adult Immunization Schedule, Age-Based
Recommendations, INDIA
Recommended if some risk factor is present
All persons who meet the age criteria
No recommendation
6. INFLUENZA
Vaccines
– Trivalent inactivated influenza
vaccine (TIV) and
– Live attenuated influenza vaccine
(LAIV)
• Schedule
– The TIV - annual, single dose of 0.5
ml IM.
– The LAIV – 0.5 ml intranasal (spray
0.25 ml per nostril)
6
7.
8. Recommendations (as per AAIP)
• People aged > 50 years
• Chronic obstructive pulmonary
disease (COPD).
• Cardiac diseases
• Diabetes Mellitus, Cancer
• Immunodeficiency, Renal Disease
• Hemoglobinopathies
• Pregnant Women
• Health Care Providers
• Adult household contacts
• Travelers to endemic area
Influenza cont…
8
9. • August - September is the optimal time to receive an annual
flu shot to maximize protection.
• Influenza vaccine may be given at any time during the
influenza season (typically October to March) or at other
times when the risk of influenza exists.
• May give with all other vaccines but as a separate injection.
Contraindications
• Previous anaphylactic reaction to this vaccine, to any of its
components, or to eggs.
• Moderate or severe acute illness.
9
Influenza cont…
10. DISEASE BURDEN OF
PNEUMOCOCCUS
• Invasive Pneumococcal Disease
– Cases: 42,000 (14.0/100,000)
– Deaths: 4,500 (1.5/100,000)
– Rates higher in elderly
• Study by International Clinical
Epidemiology Network (INCLEN)
shows case fatality rate in south India
due to
– Pneumococcal Pneumonia – 19%
– Pneumococcal bacterimia – 21%
– Pneumococcal meningitis – 34%
• 23% of IPD patients were > 50 years
11. PNEUMOCOCCAL INFECTION
Vaccines
• The pneumococcal polysaccharide
vaccine (PPV), contains 25 ÎĽg each of purified
capsular polysaccharide from 23 serotypes of
Streptococcus pneumoniae.
Schedule
– A single standard dose (0.5 ml) is
administered by the intramuscular or
subcutaneous route.
– This vaccine can be co-administered with live
vaccines such as the influenza vaccine.
12. • Adults who are 65yrs of age or older.
High risk people
• Anatomic asplenia
• Sickle cell disease
• Immunocompromised persons including HIV
• Leukemia, Lymphoma
• Hodgkin’s disease
• Multiple myeloma
• Generalized malignancy
PPV cont…
13. • One-time revaccination is recommended 5yrs later
for people with
– Rapid antibody loss (e.g., renal disease), nephrotic
syndrome, functional or anatomic asplenia and
immunosuppressive condition.
– People >65yrs of age if the 1st dose was given
prior to age 65 and > 5yrs have elapsed since
previous dose.
PPV cont…
15. Schedule
• A single dose of 0.5 ml SC in deltoid region.
• In children between 3 months and 2 years of
age, two doses at an interval of 3 months are
indicated.
Meningococcal
cont…
16. Recommendations
– During an outbreak (HCW, Lab. worker, Close
contacts )
– During inter-epidemic period
– To travelers, pilgrims(Quadrivalent), people
attending fairs and festivals(bivalent 10-14 days
prior).
– Adults with anatomic or functional asplenia, or
terminal complement component deficiencies.
– Mass vaccination may be considered depending on
the age-specific attack rate, geographical
distribution of cases, and the availability of vaccine.
Meningococcal
cont…
17. HUMAN PAPILLOMAVIRUS
• Human Papillomavirus (HPV) -USA
– At least 70% of sexually active persons
acquire genital HPV infection at some
point in their lives
– ~20 million currently infected
– 6.2 million new infections/year
– ~ >11,000 new cervical cancer cases/year
• Human Papilloma Virus (HPV)
Infection
Nearly 80% of sexually active women
& men are infected with HPV.
India – 1,32,000 new cases &
74,000 deaths per year
18. HUMAN PAPILLOMAVIRUS
• Papillomavirus infection is precursor to cervical
cancer
– Types 16, 18 account for 70% of cervical
cancers
Vaccines
• Two types HPV vaccines are available.
– Gardasil (Merck, USA), a quadrivalent vaccine
containing HPV virus L1 protein like particles of
HPV 6,11,16, and 18
– Cervarix (GlaxoSmithKline, Belgium) is a
bivalent vaccine containing L1 VLPs of HPV
16,18.
19.
20. Recommendations
• The vaccine has to be delivered prior to exposure to
the HPV virus. Therefore, the immunization must
precede the sexual debut.
• Age for initiation for vaccination to be 10 - 12 years.
• Catch-up vaccination can be advised up to the age of
26 years for Gardasil vaccine and 45 years for Cervarix
vaccine.
HPV cont…
21. Contraindications
• Pregnancy
• Patients with hypersensitivity to any of the vaccine
components.
Special situations
• The HPV vaccine is not contraindicated during
lactation.
• The vaccine can be administered to
immunosuppressed individuals.
HPV cont…
22. 0–1 Year 0–5 Years 1–20 Years
Invasive
Cervical
Cancer
Cleared HPV Infection (~80%)
1. Pinto AP, Crum CP. Clin Obstet Gynecol. 2000;43:352–362.
CIN 1
Initial
HPV
Infection
Continuing
Infection
CIN
2/3
Natural History of HPV Infection and
Potential Progression to Cervical Cancer
22
HPV cont…
23. Hepatitis – B
• Hepatitis – B prevalence in India is
1-2% (Lodha et al)
• Study by Murhekar in 2001 at
Andaman in healthy people
– HBsAg +ve – 1.6% &
– Anti HBs +ve – 18%
• Overall chronic HBsAg +ve rate in
India is 4.7%
Hepatitis B
24. Hepatitis B
Recommendations
• Person at risk of infection by sexual route
- sex partner of HBsag infection
- sexually active person
- person seeking evaluation or treatment of STD
• Person at risk of infection by subcutaneous or mucosal route
- current or recent injection drug abuser
- household contacts
- healthcare and public safety worker
• Person with ESRD or requiring multiple transfusion
• Others
- person with CLD or HIV
- all other person seeking protection from HBV infection.
25.
26. Prevaccination screening
• Prevaccination screening in general population has not been
found to be cost effective in India.
• Prevaccination screening may be cost-effective in adult
populations with a prevalence of HBV infection of >20% such
as
– Household or sexual contacts of HBsAg-positive persons;
– HIV infected persons
– Injection drug users
– Men who have sex with men
– Patients with chronic liver disease (CLD)
– End-stage renal disease (ESRD).
HBV cont…
28. Hepatitis – A
• Study by Mall in 5 cities (Kolkota,
Cochin, Indore, Jaipur & Patna)
shows adult population was at risk of
HAV as low level of anti HAV
antibodies
• Study by Dhawan et al –
seroprevalance for protective anti
HAV antibodies
High socioeconomic class – 54.5%
Low socioeconomic class – 85%
Hepatitis A
29. Hepatitis A
Vaccines
• Inactivated-single antigen (HAV antigen)
vaccines,
– Havrix (GlaxoSmithKline) and
– Vaqta (Merck & Co)
• Combination vaccine
– Twinrix ( HAV + HBV antigens GlaxoSmithKline).
Schedule
• Two doses of 1ml at 6 month interval.
• Immune status for hepatitis A should be checked
30. Recommendations
• The Expert Group felt that universal immunization
for hepatitis A is not recommended as yet.
• Not only is the vaccine costly, more epidemiological
data are required to ascertain its benefits.
• Adults at risk for acquiring hepatitis A, and adults
who are negative for anti-HAV antibodies are likely
to benefit most in view of changing epidemiology.
Hepatitis A cont…
31. Adults high risk for acquiring hepatitis A:
– People who travel to endemic area of Hep A
– Persons who work with HAV-infected
primates or with HAV in a laboratory
– Who receive clotting factor concentrates
– Persons infected with other hepatitis viruses
– Chronic liver disease not immune to HAV
– Received, or are awaiting a liver transplant
– Men who have sex with men
Hepatitis A cont…
33. Contraindications
• Previous anaphylactic reaction to this vaccine or
to any of its components.
• Moderate or severe acute illness.
• Safety during pregnancy has not been
determined, so benefits must be weighed against
potential risk.
Hepatitis A cont…
34. Herpes zoster (shingles)
• Shingles is caused by a reawakening
of the chickenpox virus
• 20-30 % people can expect to get
shingles in their lifetime
35. Vaccines
• Zostavax - lyophilized preparation of the Oka
strain of live, attenuated varicella zoster virus
(VZV).
Schedule
• Single 0.65 ml dose subcutaneously in the upper
arm.
• Each 0.65 ml dose contains a minimum of 19,400
plaque-forming units [PFU].
• The vaccine must be used within 30 minutes after
reconstitution.
Herpes Zoster cont…
36. Recommendations
• Recommended for persons > 60 years.
• High risk for developing recurrent herpes
zoster, such as
– Patients with chronic medical conditions (CKD,
diabetes mellitus, rheumatoid arthritis, and
chronic pulmonary disease);
– Persons who are likely to have severe
immunosuppression in near future.
Herpes Zoster cont…
37. DPT
Diphtheria
• Overall cases of Diphtheria reduces
• 1980 – 39231
• 2005 – 10231
• 2009 – 3480
• Study in Hyderabad shows that annual incidence increases
from 11 to 23/lakh from 2003 to 2006 in 5 – 19 years.
• Study for Protective levels of antibodies in Delhi shows
121 pregnant women – 94% have protective Ab titer
(>0.125U/ml)
574 adults – 87% have protective Ab titer
38. Tetanus
• Total cases in India
1980 – 45948 cases
2007 – 7005 cases
• Study in Pondicherry for protective level of
Tetanus Ab (> 0.15U/ml)
21 - 30 years – 50.4% (105/208)
31 – 40 years – 29.4%(58/198)
> 41 years – 2.2% (5/224)
Pertussis
1987 -163000 cases
2009 – 55074 cases
39. Diphtheria, Tetanus, Pertussis
Vaccines
• Two Tdap Vaccines are available for use in those
who are more than 10 years of age.
– [i] Adacel contains tetanus toxoid, diphtheria toxoid,
and five pertussis antigens;
– [ii] Boostrix contains tetanus toxoid, diphtheria toxoid,
and three pertussis antigens.
• Efficacy of Tdap vaccine - 92% in a recent RCT.
Recommendations
• For adults in the age group of 18 to 64 years
– Three dose series if never vaccinated at 0 and 4 weeks,
the third 6-12 months after second
– One dose booster of Tdap every 10 years
40. • Health care personnel, especially those in direct
contact with the patients, who have not received
Tdap vaccine should receive a single dose of Tdap
vaccine if 2 years or more have elapsed since the last
dose of Td vaccination.
• Women planning pregnancy should receive one dose
of Tdap vaccine if they had not received it previously.
Tdap cont…
41. • For Pregnant Women
Last dose Recommendation
> 10 Years 1 dose in 2nd or 3rd trimester
2-10 years 1 dose immediate postpartum
Never 3 doses 0, 1, 6 months
• During outbreak if previous unimmunized or
Td before 2 years give 1 dose of Tdap
Tdap cont…
42. Contraindications
• History of anaphylaxis to any component.
• History of encephalopathy within 7 days of
previous vaccination of Tdap.
• Moderate or severe acute illness, and those
with unstable neurologic conditions (e.g.,
stroke, acute encephalopathies)
• Tdap vaccination is to be deferred until the
acute illness resolves.
Tdap cont…
43. Tetanus Prophylaxis In Routine Wound
Management
Doses of TT Clean, minor wounds All other wounds
Given in past
TT TIG* TT TIG*
Unknown, < 3 doses YesNo YesYes
≥ 3 doses No** No No*** No
*TIG: Tetanus immunoglobulin (250 IU IM)
**Yes, if more than 10 years since last dose
***Yes, if more than 5 years since last dose
For children less than 7 years, DTP may be given and above 7
years TT or Td .
Tdap cont…
44.
45. Recommended Vaccines for Healthcare
Workers
• Healthcare workers should maintain an
immunization history for:
– Hepatitis B
– Influenza
– MMR
– Varicella (chickenpox)
– Tetanus, diphtheria, pertussis
– Meningococcal
46. Recommended vaccines for travelers
to India
CDC recommends the vaccines according
to duration of stay in India.
• Tetanus-Diphtheria
• Hepatitis A
• Yellow Fever
• Polio
• Japanese Encephalitis
• Rabies
• Typhoid
• Hepatitis B
• Tuberculosis
• Meningitis
< 1 month
1- 5 month
> 6 month
Source : CDC
48. YELLOW FEVER
• Yellow fever caused by virus belonging to
family called flaviviridae.
• Yellow fever vaccine is live attenuated vaccine
• Single s.c dose of 0.5ml given and
seroconversion is >95%.
• Protection stats from 10th
day and last till
10yrs.
49. LEGAL REQUIREMENT IN INDIA
• all travelers arriving or transiting from
endemic countries like Africa, South America
and Caribbean are requested to carry
international certificate of vaccination or
prophylaxis against yellow fever.
• Any person coming without certificate
quarantined up to 6 days.
54. • Cholera vaccine
oral cholera – WC, WC-rBS, CVD-103HgR
injectable – not used now
• Typhoid
Vi polysaccharide vaccine
ty21a vaccine
• Tuberculosis
- BCG vaccine currently available and others like DNA
vaccine, subunit vaccine and recombinant BCG under trail.
- vaccine based immunotherapy
RUTI and mycobacterium w
55. Adult Immunization Challenges
• Inadequate funding for vaccines and
administration in public programs
• Lack of knowledge – both patients
and providers
• Poor public health and private
infrastructure for vaccine delivery.
• Lack of availability of vaccine.
• High cost of vaccine.
56. Screening Patients for Vaccines
• Screen every patient regardless of reason for
visit
• Utilize screening tools; H-A-L-O
– Health condition
– Age
– Lifestyle
– Occupation
57. Documentation
• Provide copy of Vaccine
Information Statement (VIS)to
patient
• Documents to be maintained
– Date vaccination & next dose
– Vaccine manufacturer
– Dose & site of vaccine
– Vaccinator’s initials
58. Vaccine Administration
• Health care personnel should get proper
training before administrating vaccine.
• Always prepare and check the following for
every vaccination you give:
– Right Patient
– Right Drug (vaccine)
– Right Dose
– Right Route (intramuscular, SC,intradermal)
– Right Time (is scheduling correct)