Is varicella a bacterial infection?
Chickenpox is an infection caused by the varicella-zoster virus. It causes an itchy rash with small, fluid-filled blisters. Chickenpox is highly contagious to people who haven’t had the disease or been vaccinated against it.
Is shingles viral or bacterial?
Shingles, or herpes zoster, is a common infection of the nerves. It is caused by a virus. Shingles triggers a painful rash or small blisters on an area of skin. It can appear anywhere on the body, but it typically appears on only one side of the face or body.
What is the virus or bacteria that causes chickenpox?
Chickenpox is a highly contagious disease caused by the varicella-zoster virus (VZV). It can cause an itchy, blister-like rash. The rash appears first on the chest, back, and face, and then spreads over the entire body.
What is the primary infection of varicella-zoster virus?
VZV is a human alphaherpesvirus that causes varicella (chickenpox) as the primary infection and establishes latency in sensory ganglia. Infectious virus is transmitted by aerosolized respiratory droplets or by contact with virus in varicella or zoster skin lesions.
What is the secondary bacterial infection for chickenpox?
Bacterial infections of the skin and soft tissues in children, including Group A streptococcal infections. Infection of the lungs (pneumonia) Infection or swelling of the brain (encephalitis, cerebellar ataxia)
What causes varicella?
Varicella (chickenpox) is an acute infectious disease. It is caused by varicella-zoster virus (VZV), which is a DNA virus that is a member of the herpesvirus group. After the primary infection, VZV stays in the body (in the sensory nerve ganglia) as a latent infection. Primary infection with VZV causes varicella.
Is shingles a viral infection?
Shingles is a viral infection that causes a painful rash. Although shingles can occur anywhere on your body, it most often appears as a single stripe of blisters that wraps around either the left or the right side of your torso. Shingles is caused by the varicella-zoster virus — the same virus that causes chickenpox.
What is the best antiviral for shingles?
Several antiviral medicines—acyclovir, valacyclovir, and famciclovir—are available to treat shingles and shorten the length and severity of the illness. These medicines are most effective if you start taking them as soon as possible after the rash appears.
What causes varicella zoster virus?
Why is varicella called chickenpox?
One is that it’s from the blisters that are seen with the illness. These red spots — which are about 1/5 inch to 2/5 inch (5mm to 10mm) wide — were once thought to look like chickpeas (garbanzo beans). Another theory is that the rash of chickenpox looks like the peck marks caused by a chicken.
What type of infection is varicella zoster?
Chickenpox is a highly contagious illness caused by the varicella-zoster virus (VZV), a type of herpes virus. It is often a mild illness, characterized by an itchy rash on the face, scalp and trunk with pink spots and tiny fluid-filled blisters that dry and become scabs four to five days later.
What diseases does varicella zoster virus cause?
Varicella-zoster virus (VZV) is the cause of chickenpox and herpes zoster (also called shingles). Chickenpox follows initial exposure to the virus and is typically a relatively mild, self-limited childhood illness with a characteristic exanthem.