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Bacterial, viral, and fungal infections can affect both animals and plants. Bacterial infections are common and caused by bacteria invading an organism. Viral infections are caused by viruses and can be difficult to treat, while fungal infections are caused by fungi and usually develop on the skin. Staphylococci and streptococci are common bacteria causing infections, while chickenpox, flu, HIV, and AIDS are caused by viruses. Fungal infections are common causes of skin infections and can be treated with topical antifungal medications.
Three main types of infection can affect both animals and plants. Bacterial infections are quite common and occur when single-celled microorganisms, known as bacteria, invade an organism. Viral infections, such as the flu, are caused by viruses and can be quite difficult to treat. Fungal infections are caused by fungi and usually develop on a person’s skin.
A bacterial infection is one of the most common types of infection. However, not all bacteria cause an infection. In fact, many of the myriad types of bacteria found in the human body are considered good bacteria and are necessary for the body to function properly. If one of these types of bacteria grows out of control, however, or if humans come into contact with a bad bacteria, the result is usually a bacterial infection.
Staphylococci and streptococci are two very common types of bacteria that can cause infections. Skin infections such as cellulitis and impetigo are often caused by a staph infection, while a sore throat is a good example of a strep infection. Treatment usually requires an antibiotic given orally or topically. However, bacterial infections are becoming more difficult to treat as many types of bacteria are becoming resistant to antibiotics.
A viral infection is caused by a virus, which is an organism made up of a nucleic acid molecule surrounded by a protective protein shield. When a virus invades a body, it takes over a living cell. It causes the cell to produce more viruses, which often lead to these types of infections.
Chickenpox and the flu are both caused by viruses, as are HIV and AIDS. Antiviral drugs can sometimes be used to treat some viral infections. These aren’t always effective, however, as they only work on very specific strains of viruses.
A fungal infection is another of the most common types of infection. This type is caused by a fungus, classified as a plant. Fungi can live virtually anywhere, even on another living organism. They can also be found in the air, soil and water.
Fungal infections are some of the most common causes of skin infections. However, fungal infections of the mucous membranes are also quite common. Athlete’s foot, ringworm and yeast infections are all caused by a fungus. Topical antifungal medications are usually all that is needed to treat a fungal infection.
