Search results
Results From The WOW.Com Content Network
Hepatitis A is an infectious disease of the liver caused by Hepatovirus A (HAV); [7] it is a type of viral hepatitis. [8] Many cases have few or no symptoms, especially in the young. [ 1 ] The time between infection and symptoms, in those who develop them, is two–six weeks. [ 2 ]
In addition, a person is sometimes infected with both hepatitis B virus (HBV) and HIV, and this population (about 2.7 million) accounts for about 1% of the total HBV infections. [ 23 ] Hepatitis C : According to the World Health Organization, there are approximately 58 million people with chronic hepatitis C, with about 1.5 million new ...
In the 1960s, the first virus that could cause hepatitis was discovered. This was hepatitis B virus, which was named after the disease it causes. [220] Hepatitis A virus was discovered in 1974. [221] The discovery of hepatitis B virus and the invention of tests to detect it have radically changed many medical, and some cosmetic procedures.
After tobacco mosaic was recognized as a virus disease, virus infections of many other plants were discovered. [34] The importance of tobacco mosaic virus in the history of viruses cannot be overstated. It was the first virus to be discovered, and the first to be crystallised and its structure shown in detail.
At critical points in American history the public health movement focused on different priorities. When epidemics or pandemics took place the movement focused on minimizing the disaster, as well as sponsoring long-term statistical and scientific research into finding ways to cure or prevent such dangerous diseases as smallpox, malaria, cholera.
Hepatitis D is caused by the hepatitis D virus (HDV), or hepatitis delta virus; it belongs to the genus Deltavirus. HDV is similar to a satellite virus as it can only propagate in the presence of the hepatitis B virus, depending on the helper function of HBV for its replication and expression. It has no independent life cycle, but can survive ...
Hepatitis A is the most common vaccine-preventable virus acquired during travel, [15] so people traveling to places where the virus is common like the Indian subcontinent, Africa, Central America, South America, Asia, and Eastern Europe should be vaccinated. [14] [16]
The 2019 United States Hepatitis A outbreak was an occurrence of several declared outbreaks of the disease, Hepatitis A, in locations in the United States including substantial instances in the states of Kentucky, [2] Mississippi, Florida, and the city of Philadelphia, Pennsylvania, [3] as well as an isolated food-related occurrence in New Jersey. [4]