Fipronil is a broad use insecticide that belongs to the phenylpyrazole chemical family. Fipronil is used to control ants, beetles, cockroaches, fleas, ticks, termites, mole crickets, thrips, rootworms, weevils, and other insects.Fipronil is a white powder with a moldy odor.ipronil is used to control ants, beetles, cockroaches, fleas, ticks, termites, mole crickets, thrips, rootworms, weevils, and other insects. Fipronil is a white powder with a moldy odor.
While the cause of rheumatoid arthritis is not clear, it is believed to involve a combination of genetic and environmental factors. The underlying mechanism involves the body's immune system attacking the joints. This results in inflammation and thickening of the joint capsule. It also affects the underlying bone and cartilage.
This type of arthritis is a reaction to that infection and so is called reactive arthritis (see Reactive Arthritis). In reactive arthritis, the joint is inflamed but not actually infected. Chronic infectious arthritis is usually caused by Mycobacterium tuberculosis (the main cause of tuberculosis), fungi, or bacteria. This type of infectious arthritis begins gradually over several weeks. It accounts for 5% of infectious arthritis and most often affects people who are at high risk.