ANATOMY

Detailed explanation-1: -When they’ve moved into someone’s body, though, viruses spread easily and can make a person sick. Viruses cause minor sicknesses like colds, common illnesses like the flu, and very serious diseases like smallpox or HIV/AIDS. Antibiotics are not effective against viruses.

Detailed explanation-2: -Infection, often the first step, occurs when bacteria, viruses or other microbes that cause disease enter your body and begin to multiply. Disease occurs when the cells in your body are damaged-as a result of the infection-and signs and symptoms of an illness appear.

Detailed explanation-3: -Bacteria cause many common infections such as pneumonia, wound infections, bloodstream infections (sepsis) and sexually transmitted diseases like gonorrhea. Moreover, they have been responsible for several major disease epidemics.

Detailed explanation-4: -What causes bacterial infections? A bacterial infection occurs when bacteria enter the body, increase in number, and cause a reaction in the body. Bacteria can enter the body through an opening in your skin, such as a cut or a surgical wound, or through your airway and cause infections like bacterial pneumonia.

Detailed explanation-5: -Common cold. The flu (influenza). COVID-19. Stomach flu (gastroenteritis). Hepatitis. Respiratory syncytial virus (RSV). 06-Jun-2022