Monday, September 7, 2026
Healthy B Daily

COVID-19: Symptoms, Treatment & Vaccine Guide

← Diseases beginning with C
Seasonal/risk-based vaccine

COVID-19

A respiratory illness caused by SARS-CoV-2.

SymptomsFever or chills, cough, sore throat, congestion, fatigue, body aches, headache, or loss of taste or smell; symptoms vary widely.
Typical durationMany acute cases improve within days to a few weeks; some people develop longer-lasting symptoms (Long COVID).
Vaccine statusSeasonal/risk-based vaccine

Symptoms and what to notice

Fever or chills, cough, sore throat, congestion, fatigue, body aches, headache, or loss of taste or smell; symptoms vary widely.

How long can it last?

Many acute cases improve within days to a few weeks; some people develop longer-lasting symptoms (Long COVID).

How serious is COVID-19?

Can cause pneumonia, hospitalization, blood clots, organ complications, and death, especially in higher-risk groups.

Treatment and management

Early antiviral treatment may reduce severe disease in eligible higher-risk patients. Seek prompt medical advice because treatment windows are short.

Is there a vaccine—and who should receive it?

CDC recommendations are updated by season and depend on age, vaccination history, and individual risk. Follow the current CDC schedule rather than an older dose count.

Official U.S. guidance

Read the current CDC guidance for COVID-19 →

Cost: Patient cost varies by insurance, provider, location, and eligibility. Many recommended vaccines are covered with no out-of-pocket cost under qualifying plans, and eligible children may receive vaccines through the Vaccines for Children program. CDC price lists are purchasing benchmarks—not guaranteed patient prices. CDC price context.

Health note: This page gives general U.S. educational information. Vaccine choice and timing depend on age, medical history, previous doses, pregnancy, travel, exposure, and current public-health guidance. Seek urgent care for severe or rapidly worsening symptoms.