Yamasa Corp. , a Japanese company has been producing soy sauce since 1645 in 1988 established a research division of food .
One of the research was to determine how the immune system responds to various chemicals in food . Then in 2001 they announced a major discovery , namely EFdA , molecules in soy sauce that could make better sense , potentially of great use in the treatment of HIV .
EFdA ( 4' - ethynyl - 2 - fluoro - 2' - deoxyadenosine ) , similar to the 8 types of HIV drugs now on the market , which can prevent the replication of HIV .
In fact , EFdA may work better compared to tenofovir , an antivirus that can reduce the amount of HIV in the blood . People with HIV who take tenofovir often have resistance to these drugs so they need to replace it with a more powerful drug . This is a deficiency of tenofovir .
