Varicella (Chickenpox)

Overview 

Varicella, commonly known as chickenpox, is a highly contagious viral infection caused by the varicella-zoster virus (VZV). It is characterized by an itchy skin rash with fluid-filled blisters, along with fever and fatigue.

Chickenpox is more common in children but can affect adults, where symptoms may be more severe. With vaccination and proper care, most cases are mild and resolve without complications.

Types of Varicella (Chickenpox)

• Primary Varicella Infection: Initial infection causing chickenpox
• Breakthrough Varicella: Occurs in vaccinated individuals (usually milder)
• Congenital Varicella: Infection in a fetus during pregnancy
• Neonatal Varicella: Infection in newborns

Symptoms of Varicella (Chickenpox)

• Itchy red rash progressing to fluid-filled blisters
• Fever
• Fatigue and weakness
• Loss of appetite
• Headache
• Body aches
• Rash spreading across the body

Causes of Varicella (Chickenpox)

• Infection with varicella-zoster virus (VZV)
• Spread through respiratory droplets
• Direct contact with fluid from blisters
• Highly contagious in unvaccinated individuals

Complications of Varicella (Chickenpox)

• Skin infections
• Pneumonia (especially in adults)
• Encephalitis (brain inflammation)
• Dehydration
• Complications during pregnancy
• Increased severity in immunocompromised individuals

Risk Factors of Varicella (Chickenpox)

• Lack of vaccination
• Close contact with infected individuals
• Weak immune system
• Pregnancy
• Adults (more severe cases than children)

Prevention of Varicella (Chickenpox)

• Varicella vaccination
• Avoiding contact with infected individuals
• Maintaining hygiene
• Isolation during infection
• Protecting high-risk individuals