Infectious Diseases A--Z: What you should know about hepatitis A

There is a widespread outbreak of hepatitis A in communities across the U.S. "Hepatitis A is a highly contagious virus that can cause infection and inflammation in the liver," says Dr. Stacey Rizza, an infectious diseases specialist at Mayo Clinic. "It's transmitted through food, water, and through an oral-fecal route." Anyone who has not been vaccinated is [...]
Source: News from Mayo Clinic - Category: Databases & Libraries Source Type: news

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AbstractHepatitis A, an acute inflammatory liver disease caused by hepatitis A virus (HAV) infection from close contact with infected people, is highly endemic in the Indian subcontinent. Due to poor sanitary conditions, most of the population is exposed to the virus in childhood. At this age, the disease is asymptomatic and provides life-long protection against the disease. Due to rapid socioeconomic development in some areas, however, pockets of the population are reaching adolescence/adulthood without prior exposure to the virus and are thus susceptible to infection. At these ages, infection carries a higher risk of sym...
Source: Infectious Diseases and Therapy - Category: Infectious Diseases Source Type: research
Opportunistic infections are those that are either more frequent or more severe as a result of the patient’s immunosuppressed condition. Opportunistic infections are, of course, the distinguishing feature of HIV infection, and they can be the cause of serious morbidity and even mortality. Some opportunistic infections can be prevented by vaccination, for example, pneumococcal infection, meningococcal infection, influenza, hepatitis A and B, and varicella. Other major opportunistic infections require prophylactic antibiotics or antiviral medications. In obstetric patients, pneumocystis infections and toxoplasmosis are...
Source: Clinical Obstetrics and Gynecology - Category: OBGYN Tags: New Antibiotics and Antibiotic Prophylaxis in Obstetrics Source Type: research
In conclusion, European countries now have more comprehensive national vaccination programs for HCP, however there are still gaps. Given the recent large outbreaks of vaccine-preventable diseases in Europe and the occupational risk for HCP, vaccination policies need to be expanded and strengthened in several European countries. Overall, vaccination policies for HCP in Europe should be periodically re-evaluated in order to provide optimal protection against vaccine-preventable diseases and infection control within healthcare facilities for HCP and patients. PMID: 31623916 [PubMed - as supplied by publisher]
Source: Vaccine - Category: Allergy & Immunology Authors: Tags: Vaccine Source Type: research
Conclusion: Outbreaks of HAV, attributed to person-to-person transmission of strains of HAV that disproportionately affected MSM and were likely to have been imported from international MSM outbreaks, have now occurred in Canada. Genetic sequencing of HAV, risk factor analysis of cases, monitoring trends of vaccine coverage in high-risk groups and initiation of vaccination campaigns that address barriers to HAV preexposure vaccine coverage in the MSM population may prevent future outbreaks. PMID: 31647057 [PubMed]
Source: Can Commun Dis Rep - Category: Infectious Diseases Authors: Tags: Can Commun Dis Rep Source Type: research
Authors: Kang SH, Kim MY, Baik SK Abstract Until 1995, the incidence of symptomatic acute hepatitis A was minimal and there were no cases of national outbreak in Korea. However, there was a nationwide outbreak of hepatitis A that peaked in 2009. In 2019, a total of 10,083 cases of acute hepatitis A were reported for seven months of the year according to the Korea Center for Disease Control and Prevention. This may be attributed to the proportion of susceptible subjects in the Korean population, as about 10 years have passed since herd immunity was induced by the epidemic occurring during the late 2000s. Recent stud...
Source: Journal of Korean Medical Science - Category: Biomedical Science Tags: J Korean Med Sci Source Type: research
This report analyzes drinking water-associated hepatitis A outbreaks reported to the Waterborne Disease and Outbreak Surveillance System (WBDOSS) during 1971-2017. During that period, 32 outbreaks resulting in 857 cases were reported, all before 2010. Untreated ground water was associated with 23 (72%) outbreaks, resulting in 585 (68.3%) reported cases. Reported outbreaks significantly decreased after introduction of Advisory Committee on Immunization Practices (ACIP) hepatitis A vaccination recommendations* and U.S. Environmental Protection Agency's (USEPA) public ground water system regulations.† Individual water ...
Source: MMWR Morb Mortal Wkl... - Category: Epidemiology Authors: Tags: MMWR Morb Mortal Wkly Rep Source Type: research
Background: Henoch-Sch önlein purpura (HSP), an IgA vasculitis, most commonly occurs in children. The IgA immune complex deposition is commonly triggered by infection but also has been seen following vaccination. In 2018, Louisville, Kentucky had an outbreak of hepatitis A with over 950 reported cases and 6 deaths. Vacci nation was strongly encouraged and available to the community as a response to the outbreak.
Source: Journal of the American Academy of Dermatology - Category: Dermatology Source Type: research
The state of Florida has declared the current hepatitis A outbreak a 'public health emergency,' and officials encourage inhabitants to get vaccinated.
Source: Health News from Medical News Today - Category: Consumer Health News Tags: Liver Disease / Hepatitis Source Type: news
nership A literature review was conducted to identify evidence of cases and outbreaks of vaccine-preventable diseases (VPDs) that have been reported from on board ships and the methods applied on board for prevention and control, worldwide, in 1990 to April 2019. Moreover, evidence from seroprevalence studies for the same diseases were also included. The literature review was conducted according to Preferred Reporting Items for Systematic reviews (PRISMA) guidelines. A total of 1795 cases (115 outbreaks, 7 case reports) were identified, the majority were among crew (1466/1795, 81.7%) and were varicella cases (1497, 83....
Source: International Journal of Environmental Research and Public Health - Category: Environmental Health Authors: Tags: Review Source Type: research
Publication date: Available online 13 June 2019Source: EpidemicsAuthor(s): Giorgio GuzzettaAbstractA major outbreak of Hepatitis A Virus (HAV) has swept through Europe between mid-2016 and 2017, mainly within the community of men who have sex with men (MSM). Over the same period, about 1,000 outbreak-related cases of acute Hepatitis A (AHA) were recorded in Lazio region, Italy.We calibrated a Bayesian model to reconstruct likely transmission events within all 44 households where multiple infections were recorded, representing a total of 103 cases from the HAV outbreak in Lazio. Based on information on the observed times of...
Source: Epidemics - Category: Epidemiology Source Type: research
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