Some of the most common or best known viruses include the human immunodeficiency virus (HIV), which is the virus that causes AIDS, the herpes simplex virus, which causes cold sores, smallpox, multiple sclerosis, and the human papilloma virus, now believed to be a leading cause of cervical cancer in adult women.irus. A virus is defined as any of a various number of submicroscopic parasites that can infect any animal, plant or bacteria and often lead to very serious or even deadly diseases. A virus consists of a core of RNA or DNA, generally surrounded by a protein, lipid or glycoprotein coat, or some combination of the three.
The gross vehicle weight rating (GVWR), or gross vehicle mass (GVM) is the maximum operating weight / mass of a vehicle as specified by the manufacturer including the vehicle's chassis, body, engine, engine fluids, fuel, accessories, driver, passengers and cargo but excluding that of any trailers.
Vehicles are categorized by their Gross Vehicle Weight Rating, or GVWR. This is a number that specifies a weight limit for that vehicle which is set by the auto manufacturer. The GVWR can usually be found on the door pillar on the driver's side. There are three main GVWR categories for vans and trucks. 1  Category 1 is for small trucks, minivans and SUVs with a GVWR less than or equal to 8,500 pounds. It is for trucks with a wheelbase less than or equal to 115 inches, and vans with a wheelbase less than or equal to 124 inches.