For example, during 2007-09, the average per acre farm value of U.S. fresh-market field tomato production was $12,238, meaning that a farm with just 82 acres of fresh tomatoes could have farm sales in excess of $1 million.or example, during 2007-09, the average per acre farm value of U.S. fresh-market field tomato production was $12,238, meaning that a farm with just 82 acres of fresh tomatoes could have farm sales in excess of $1 million.
HIV itself is the pathogen that causes AIDS. HIV (human immunodeficiency virus) is the name of the pathogen.IV/AIDS is caused by a virus HIV is a virus. that's what the V stands for. and after a while HIV develops in to AIDS. The definition of pathogen is bacteria or virus that causes disease. So HIV is the virus that causes AIDS disease. Hope I helped :).
Ever since HIV-1 was first discovered, the reasons for its sudden emergence, epidemic spread, and unique pathogenicity have been a subject of intense study. A first clue came in 1986 when a morphologically similar but antigenically distinct virus was found to cause AIDS in patients in western Africa (Clavel et al.cquired immunodeficiency syndrome (AIDS) of humans is caused by two lentiviruses, human immunodeficiency viruses types 1 and 2 (HIV-1 and HIV-2). Here, we describe the origins and evolution of these viruses, and the circumstances that led to the AIDS pandemic.