The detailed introduction about hepatitis A to help the situation!!
Answer:
What is hepatitis A
Hepatitis A to hepatitis A virus (HAV) infection caused by more common gastro-intestinal diseases, more common in children and adolescents, general incubation period of 26 weeks, the disease clinically divided into acute jaundice, acute jaundice , Cholestatic severe type with four types of course for 2-4 months. hepatitis A incidence in winter and spring are the peak period.
Clinical symptoms of hepatitis A
Hepatitis clinically manifested as acute onset, have chills, fever, abdominal pain, diarrhea, dyspepsia, loss of appetite, nausea, fatigue, hepatomegaly and liver function abnormalities. Early, often mistaken for a cold, easy to neglected, delay treatment, and then caused the dissemination of epidemic outbreaks or .83% of the hepatitis A patients have fever (mostly at 38 1 between 39 ), an average of three days of fever, but there are also 15% of patients with fever more than 5 days .90% of patients have jaundice, severe gastrointestinal symptoms, ALT increased the range of large, 800IU/L-2000IU/L could account for 55%.
The route of transmission of hepatitis A
Hepatitis A is usually the source of infection in patients with acute andٴȾpersons, sick since the end of incubation to 10 days after onset of infectious largest fecal - oral channels are its main route of transmission, water, food are the main investigation of the outbreak of the way, day-to-day Living contacts are sporadic cases the main route of transmission. It has been reported can also be made through blood-borne hepatitis A and vertical transmission (Foreign Medical circulating volumes 1994), pending further study.
Prevention of hepatitis A
In addition to actively put the "start with the mouth," the customs, the hepatitis A vaccine can be vaccinated, immunity after vaccination have close to 100%. As long as the arm at injection time, would allow the body to produce immunity to prevent hepatitis A, not infected with hepatitis.
Hepatitis A Diagnosis
Hepatitis A patients 14 weeks after onset of serum hepatitis specific antibodies can be detected. That there are mainly two specific antibodies, that is, early hepatitis A antibodies: 1gM antibody (anti-HAV, IgM) and convalescent hepatitis A antibody : 1gG antibody (anti-HAV-IG). the former dominant at the early stage of infection, 3 months after the decline in titer, equivalent to 68 months after the detection is not easy; the latter a lower titer of the early, after a gradual increase in the antibody can still be maintained after rehabilitation at a considerable titer, sustainable for several years or more. HAVIgM only because of resistance at early stage of infection, the second infection does not occur, are of recent infection sensitive indicator for early diagnosis, but also the current Diagnosis of Hepatitis A most convenient method. As a result, the anti-HAV, 1gM positive tips for acute infection or a relapse, and only detected a single acute phase serum can immediately make a diagnosis. combined with the epidemiological investigation and, if exposure to hepatitis A the history of cricket has hair, such as eating unclean diet history; have typical clinical manifestations such as generalized weakness, loss of appetite, nausea, vomiting,tired of greasy food, liver function test alanine aminotransferase significantly increased, while hepatitis A fundamental to determine the diagnosis. diagnosis of hepatitis A complementary project secretions there is a wide variety of anti-HAV-1gA, fecal HAV virus particles.
Hepatitis prognosis
Hepatitis A is self-limiting disease, was hospitalized for as long as the timely isolation and treatment, the more after a good cure, non-chronic.
Hepatitis A treatment principle
The treatment of hepatitis A should be based on the principle of rest, nutrition, supplemented by appropriate drugs, avoid alcohol, fatigue and liver damage drug use.
