Coronavirus: What Is It?

How Does Coronavirus Spread?

COVID-19 spreads primarily through respiratory droplets when an infected person coughs, sneezes, talks, or breathes. These droplets can be inhaled by people nearby or land on surfaces. Transmission can occur through:

• Close contact (within about 6 feet) with an infected person
• Airborne transmission in poorly ventilated indoor spaces
• Touching contaminated surfaces and then touching the face, mouth, nose, or eyes
• Presymptomatic or asymptomatic carriers can also spread the virus

Common Symptoms of COVID-19

Symptoms typically appear 2 to 14 days after exposure to the virus. The most common symptoms include:

• Fever or chills - One of the most common early signs of infection
• Dry cough - Persistent and often worsens over time
• Fatigue - Extreme tiredness that can last for weeks
• Loss of taste or smell - A distinctive symptom of COVID-19
• Shortness of breath - Difficulty breathing, especially with activity
• Sore throat, headache, muscle or body aches
• Congestion, runny nose, nausea, or diarrhea

Who Is at Higher Risk?

While anyone can contract COVID-19, certain groups are at higher risk of developing severe illness:

• Older adults aged 65 years and above
• People with underlying medical conditions such as diabetes, heart disease, hypertension, and chronic lung disease
• Immunocompromised individuals, including cancer patients and organ transplant recipients
• People with obesity (BMI of 30 or higher)
• Pregnant women

Treatment and Recovery

Most people with COVID-19 (about 80%) recover without needing hospital treatment. Mild cases can be managed at home with rest, hydration, and over-the-counter medications such as acetaminophen to reduce fever and pain. Antiviral medications like Paxlovid and Remdesivir are available for high-risk patients. Severe cases may require hospitalization, oxygen therapy, or mechanical ventilation. COVID-19 vaccines and booster doses have proven highly effective at reducing the severity of illness and preventing hospitalizations and deaths.

Long COVID

Some individuals experience persistent symptoms weeks or months after the initial infection, a condition known as Long COVID or Post-COVID Syndrome. Common long-term effects include ongoing fatigue, brain fog, shortness of breath, chest pain, joint pain, and depression. Research into Long COVID is ongoing, and patients experiencing prolonged symptoms should consult their healthcare provider for a personalized management plan.