COVID-19

Medically Reviewed and Compiled by Dr. Adam N. Khan, MD. Quick Summary: EMERGENCY WARNING: If you or someone in your care develops severe shortness of breath, continuous pain or pressure in the chest, sudden confusion or difficulty staying awake, or a pale, gray, or blue discoloration of the skin, lips, or nail beds, call 911 … Read more

Medically Reviewed and Compiled by Dr. Adam N. Khan, MD. Quick Summary: EMERGENCY WARNING: If you or someone in your care experiences severe trouble breathing, persistent chest pain or tightness, new mental confusion, inability to wake or stay awake, or a pale, gray, or blue discoloration of the lips, skin, or nail beds, call 911 … Read more

Medically Reviewed and Compiled by Dr. Adam N. Khan, MD. Quick Summary: EMERGENCY WARNING: If you or someone you are caring for experiences critical warning signs—including severe shortness of breath or persistent chest pressure, new-onset confusion or inability to wake, a drop in oxygen saturation below 95%, or a pale, gray, or blue discoloration of … Read more

Medically Reviewed and Compiled by Dr. Adam N. Khan, MD. Quick Answer EMERGENCY WARNING: If you or someone in your care develops severe breathing trouble, persistent chest pain or pressure, new mental confusion, inability to wake or stay awake, or a pale, gray, or blue discoloration on the lips, skin, or nail beds, seek immediate … Read more

Medically Reviewed and Compiled by Dr. Adam N. Khan, MD. Quick Summary EMERGENCY WARNING: If you or someone in your care experiences severe difficulty breathing, persistent chest pain or pressure, sudden confusion, inability to wake or stay awake, high fever unresponsive to medication, or a bluish or pale discoloration of the lips, face, or nail … Read more

Last Updated: September 18, 2026 | Medically Reviewed Sources: FDA, CDC, Cleveland Clinic, Johns Hopkins, Cochrane Database Quick Answer: If you have COVID symptoms and your rapid test is negative, retest in 48 hours. A single negative test does NOT rule out COVID-19. If you’re high-risk, contact your doctor immediately don’t wait for a positive … Read more

Medically Reviewed and Compiled by Dr. Adam N. Khan, MD. Quick Summary: 1. Medical Overview and Pathophysiology Measles, scientifically known as rubeola, is one of the most infectious viral diseases known to medical science. It is caused by an enveloped, single-stranded, negative-sense RNA virus belonging to the Morbillivirus genus within the Paramyxoviridae family. Humans are … Read more

Medically Reviewed and Compiled by Dr. Adam N. Khan, MD Key Takeaways 1. Medical Overview and Pathophysiology Questions regarding whether COVID is on the rise again reflect observable clinical and epidemiological shifts. Surveillance data from the CDC and World Health Organization (WHO) demonstrate recurring waves of SARS-CoV-2 transmission, primarily driven by immune-evasive subvariants such as … Read more

Medically Reviewed and Compiled by Dr. Adam N. Khan, MD. Quick Summary EMERGENCY WARNING: Paxlovid is an outpatient treatment for mild-to-moderate COVID-19 and is not a substitute for emergency room care or oxygen therapy. Call 911 or seek immediate emergency medical care if you or someone in your care experiences: Medical Overview and Pathophysiology Paxlovid … Read more

Medically Reviewed and Compiled by Dr. Adam N. Khan, MD Quick Answer EMERGENCY WARNING: Seek immediate emergency medical attention (call 911 or visit the nearest emergency department) if you or someone under your care experiences severe trouble breathing, persistent pain or pressure in the chest, new confusion, inability to wake or stay awake, or pale, … Read more

Medically Reviewed and Compiled by Dr. Adam N. Khan, MD. Quick Summary: EMERGENCY WARNING: If your dog displays blue, purple, or pale gums, rapid or severely labored breathing, extreme collapse, high fever exceeding 104°F (40°C), coughing up bright red blood, or complete inability to keep fluids down, seek immediate emergency veterinary medical care. These red-flag … Read more

Medically Reviewed and Compiled by Dr. Adam N. Khan, MD. Quick Answer: EMERGENCY WARNING: If you or someone in your care experiences severe difficulty breathing, persistent pain or pressure in the chest, sudden confusion, inability to wake or stay awake, or a pale, gray, or blue discoloration on the lips, skin, or nail beds, seek … Read more

If you’ve recently tested positive for COVID-19, you may be wondering: can your furry best friend catch it too? The short answer is yes—but the good news is that the risk is low, and serious illness in dogs is extremely rare. Here’s what every pet owner needs to know about COVID-19 transmission between humans and dogs, … Read more

Medically Reviewed and Compiled by Dr. Adam N. Khan, MD. Quick Answer: EMERGENCY WARNING: If you or someone in your care experiences sudden chest pain or tightness, severe shortness of breath, pain spreading to the arm, shoulder, neck, jaw, or back, unexplained sweating, dizziness, sudden confusion, or blue/gray discoloration of the lips or face, call … Read more