Vaccine is a dampen or killed pattern of a computer virus injected in the body that playact as an antigen , which helps body to build antibodies against it , so that the body is quick to fight off when there is infection with the same virus in future . Thus , hepatitis A vaccinum helps prevent hepatitis A virus that can be a serious disease , if not fateful , but can require hospitalization insurance in about 40 % cases . Hepatitis A virus is spread through unwritten - faecal route , but can also be spread through contaminated water and ice , by having faithful personal kinship with an infected person such as living with the person or having sex with them . It can also be circulate through polluted foods such as fruits , vegetables , shellfish and uncooked food .
Who Should and Should Not Get Hepatitis A Vaccine?
Hepatitis A vaccine is give to all infants greater than 12 month of age , between 12 to 23 month of age . It is also given to multitude travel to developing countries ( such as parts of Africa , Asia , Central and South America and East Europe ) where there is increase opportunity of intellectual nourishment borne contagion and pollution due to less sanitary riding habit ; homosexual men ; illicit drug user whether injectable or non - injectable ; multitude with blood curdling upset ; people with chronic liver disease ; citizenry with close personal human relationship or contact with hepatitis A infected mortal such as an international adoptee from a body politic where hepatitis A is common ; people who work with HAV infected primate or with hepatitis A computer virus in laboratories . It can also be give to any individual who want protection from hepatitis A infection .
Hepatitis A vaccine should not be give to people who have had severe allergic chemical reaction to the vaccine in the yesteryear , people who have known allergic reaction to any element of hepatitis A vaccinum and people with moderate to life-threatening keen illness . Hepatitis A vaccinum is mostly considered dependable in meaning womanhood .
What Are The Side Effects of Hepatitis A Vaccine?
Hepatitis A vaccine is parcel out as a two - dose pellet . The second dose is given after 6 month of the first jibe , within 6 - 12 months from the first shot . Hepatitis A vaccinum is administer in the upper arm . It should be mete out when one is at a risk of acquire the contagion or come out one month prior to travel .
by and large , hepatitis A vaccine is study secure , but there may be mild side effects to it , just like any other vaccine or medication . The side effect are unremarkably mild and subside within two Day of attack after 3 - 5 days of the shot . The most vulgar side effect is soreness in the weapon that occurs in one out of two adult and one out of every five children . Other less common side effects include low-pitched - course pyrexia , headache , loss of appetite and tiredness . In some rare cases , the affected role may submit with serious generalized allergic reaction to the vaccine . The wicked allergic response , if happens , occurs within few minutes to few hours of the shot . The symptom of severe reaction let in gamey feverishness , difficultness respiration , husky voice or wheezing , hives , paleness of skin , impuissance , dizziness , rapid heart pace and/or behavior changes . If these symptoms go on then one must get hold of doctor immediately .
Hepatitis A vaccinum has been shew very effective and all individuals after receiving the vaccine get immune to hepatitis A. 94 % people get immune to the infection after receiving one shot , but it is imperative to receive the full two dosage of the vaccine . After the advent of hepatitis A vaccine in 1995 , the disease rate has declined to about 95 % in the United States .
There are also combination vaccines for both hepatitis A and hepatitis B usable for adults . However , these have different schedule of dosing and one should enquire with their wellness care professional before flummox that done . Twinrix is unremarkably favour when a person is go to part of countries where there is increased rate of transmission for both the disease .
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