Master Pediatric Vaccinations - Age 6 Months with Picmonic for Medicine

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Pediatric Vaccinations - Age 6 Months

Baby and Syringe with (6) Sax and Month-moon
Picmonic
Vaccinations are a type of primary prevention, meaning that their goal is to decrease the overall incidence of disease in the population. A 6-month old infant should receive 4-7 vaccinations. All infants should receive their 3rd dose of the hepatitis B, diphtheria, tetanus, and acellular pertussis (DTaP), pneumococcal, and inactivated polio vaccines. Some infants will need a third dose of haemophilus influenzae type B (HiB) and rotavirus vaccinations, depending on the formulation used. Infants may also receive their first inactivated influenza vaccination as early as six months of age, depending on the time of the year. General contraindications to all vaccinations include serious (anaphylactic) allergic reactions to any vaccine component or previous dose of the particular vaccination and those with severe immunodeficiency. Live vaccines (MMR, varicella, yellow fever, nasal influenza, oral rotavirus) should not be given to immunosuppressed or pregnant patients.
7 KEY FACTS
B DR HIP IN 6 MONTHS
Hepatitis B
Happy-tie-liver Bee

Hepatitis B virus (HBV) is an enveloped DNA virus in the Hepadnavirus family that has a surface antigen (HBsAg), and an inner nucleocapsid containing hepatitis B core antigen (HBcAg).  The HBV vaccine (HepB) is a recombinant subunit vaccination targeting the HBsAg surface antigen, that is created in yeast cells (therefore contraindicated in patients with yeast allergies).  Three doses are needed if the monovalent vaccine is used, however 4 doses are needed if the combination with DTaP/IPV is used.   It is given intramuscularly (IM), and is effective at preventing hepatitis B - related morbidity and mortality; including infant fulminant hepatitis, primary liver cancer, and end stage liver disease.  First dose should be given soon after birth,  2nd dose at 2 months of age and the 3rd dose between 6 and 18 months of age if the mother is HBsAg-negative.  An infant born to a HBsAg-positive mother should receive the 1st dose of HBV plus hepatitis B Ig at two different sites within 12 hours of birth, and should receive all 3 doses by 6-months of age (treated same as exposure).  All children and teens who have not been immunized should receive the series at any physician visit.  

DTaP - Diphtheria Tetanus acellular pertussis
DTaP-dancer

Diphtheria is an acute respiratory illness caused by Corynebacterium diphtheriae, and has a fatality rate of up to 20% among children <5 yrs old.  Tetanus is a spasmodic nervous system disorder caused by Clostridium tetani toxin.  Bordetella pertussis causes an acute respiratory illness known as "whooping cough".  The DTaP vaccine contains diphtheria and tetanus toxoids (inactivated toxins), and inactivated acellular pertussis to protect against these three infections.  It is administered IM and the 3rd of 5 total doses of DTap is recommended at the 5-month visit.  Contraindications to immunization include encephalopathy without an identifiable cause within 7 days of a previous dose, or progressive neurologic disease such as infantile spasms or uncontrolled epilepsy. Pertussis booster (Tdap) vaccine is now recommended during adolescence, regardless of immunization status and is also recommended even if the patient has already had pertussis. 

RV - Rotavirus
Rotor-virus

Rotavirus is a naked, double-stranded, linear RNA virus in the Reoviridae family, that is the most common cause of severe diarrhea in infants and young children.  The Rotavirus vaccination is a live-attenuated vaccine that is given orally.  There are two available formulations; RV1 is a human assortment requiring 2 doses, and RV5 is a human-bovine assortment requiring 3 doses.  Infants receive their 3rd dose of the rotavirus vaccine at their 6-month visit, if RotaTeq was used (the Rotarix preparation only requires 2 doses).  

HiB - Haemophilus Influenzae Type B
He-man in-flute (B) Bee

Prior to development of the vaccination, Hib was the most common cause of bacterial meningitis in children. It also frequently caused other serious disease including epiglottitis, pneumonia, septic arthritis, and bacteremia.  The Hib vaccine consists of the type B capsular polysaccharide conjugated to a carrier protein.  This conjugation strengthens the T cell dependent response to vaccination.  As the vaccination only covers type B, it does not offer any protection against other types or non-typable haemophilus. It is administered IM.  If a 3 dose preparation was used (ActHIB, MenHibrix, or Pentacel), the 3rd dose is given at the 6-month visit.

IPV - Inactivated Polio Vaccine
Polio-player Syringe

There are two polio vaccines - inactivated poliovirus vaccine (IPV) and live attenuated poliovirus vaccine (OPV) - although OPV is no longer used in the U.S. it is still used in many parts of the world.  IPV induces active immunity against poliovirus types 1, 2, and 3.  IPV is available alone and in combination with other pediatric vaccines.  It is administered IM or subcutaneously, and the 3rd of 4 doses is given between 6-18 months of age.  Any child up to 18 years of age should receive all doses, if behind.  IPV is contraindicated in pregnancy or those with a pregnant female at home. 

PCV - Pneumococcal
Nude-cock Syringe

PCV is derived from a capsular polysaccharide, which allows for type-specific antibody killing.  Polysaccharide vaccines were found to have poor efficacy in children <2 years old, however conjugation of the polysaccharide to immunogenic non-pneumococcal carrier proteins elicits a T cell-dependent memory response that is effective in infants.  The Pneumococcal conjugate vaccine (PVC13) contains purified polysaccharides of 13 serotypes conjugated to a diphtheria protein.  PCV13 is given in 4 doses, with the 3rd being given at the 6-month visit.  There must be a minimum of 4 weeks between the first 3 doses, and 8 weeks between the 3rd and last dose.  The 23-valent pneumococcal polysaccharide vaccine (PS23) is given to provide additional protection to the PCV13 in some high-risk children (e.g. functional or anatomic asplenia) whom are >2 years old. 

Influenza
In-flute Virus

Influenza is an acute illness of the upper respiratory tract caused by the influenza A and B, and less commonly influenza C viruses. It is generally mild, however can be associated with severe morbidity and mortality in infants and other immunocompromised patients. The influenza vaccination is recommended annually for all patients >6 months. The strains included in the vaccine are updated each year depending on the strains that are anticipated to be prevalent during the upcoming flu season. There are two types of influenza vaccines. The first is an inactivated influenza vaccine (IIV, the typical flu shot) that is given annually during the flu season for children >6 months of age that consists of A strains, B strains and H1N1. The second is a live influenza vaccine (LAIV, FluMist) that is administered intranasally. IIV is egg-based, and is administered intramuscularly and should be used with caution in patients with hypersensitivity to egg, gelatin, or latex as they may have a higher risk of anaphylactic reaction. Because it is a live-attenuated vaccine, LAIV is contraindicated in patients <2 years old, those <4 with asthma, patients who are allergic to eggs or are immunocompromised. LAIV is only given to healthy people 2-49 years old who are not pregnant and who do not have certain health conditions.

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