COVID-19

Medically Reviewed and Compiled by Dr. Adam N. Khan, MD. Quick Summary: EMERGENCY WARNING: If a care home resident experiences severe trouble breathing, persistent chest pain or pressure, new confusion, or bluish lips or skin, seek emergency medical services (call 911 in the USA or 999 in the UK) immediately. Do not wait for routine … Read more

Medically Reviewed and Compiled by Dr. Adam N. Khan, MD. Introduction to Current COVID-19 Symptoms Understanding american covid symptoms is vital for protecting your family, managing home isolation, and making informed choices about when to seek medical treatment. Over time, the SARS-CoV-2 virus has evolved through multiple variants. While the underlying virus continues to mutate, … Read more

Medically Reviewed and Compiled by Dr. Adam N. Khan, MD. Executive Summary: EMERGENCY WARNING: Seek immediate emergency medical attention (call 911 or visit the nearest emergency room) if you or someone you are caring for experiences persistent trouble breathing, constant pain or pressure in the chest, new confusion, inability to wake up or stay awake, … Read more

Medically Reviewed and Compiled by Dr. Adam N. Khan, MD. Quick Summary: EMERGENCY WARNING: If you experience severe chest pain, shortness of breath, a rapid or fluttering heart rate, swelling of the face or throat, severe hives, or feeling faint within minutes to days after receiving any vaccine, call 911 or visit the nearest emergency … Read more

Medically Reviewed and Compiled by Dr. Adam N. Khan, MD. Overview of the Pfizer COVID-19 Vaccine The Pfizer-BioNTech COVID-19 vaccine (marketed under the brand name Comirnaty for older age groups) uses messenger RNA (mRNA) technology to teach your immune system how to recognize and fight the virus that causes COVID-19. When you receive the shot, … Read more

Medically Reviewed and Compiled by Dr. Adam N. Khan, MD. Quick Summary: EMERGENCY WARNING: Seek immediate emergency medical care (call 911 or go to the nearest emergency room) if you or someone in your care experiences signs of a severe allergic reaction (anaphylaxis)—such as swelling of the face, lips, tongue, or throat, hives, or severe … Read more

Medically Reviewed and Compiled by Dr. Adam N. Khan, MD. Key Takeways: EMERGENCY WARNING: If you experience difficulty breathing, swelling of your face, lips, throat, or tongue, severe chest pain, persistent dizziness, or rapid heart rate shortly after receiving a vaccination, call 911 or seek immediate emergency medical attention immediately. Understanding COVID-19 Vaccine Formulations When … Read more

Medically Reviewed and Compiled by Dr. Adam N. Khan, MD. Key Takeways: ⚠️ EMERGENCY WARNING: If you or a loved one experience severe shortness of breath, continuous chest pain or pressure, sudden confusion, bluish lips or face, or signs of a severe allergic reaction (such as difficulty breathing, wheezing, or throat swelling) after vaccination or … Read more

Medically Reviewed and Compiled by Dr. Adam N. Khan, MD. EMERGENCY WARNING: Seek immediate medical care or call 911 if you or someone you are caring for experiences severe trouble breathing, persistent chest pain or pressure, new confusion, pale/gray/blue skin or lip discoloration, or an inability to wake or stay awake. COVID-19 continues to circulate … Read more

Medically Reviewed and Compiled by Dr. Adam N. Khan, MD. ⚠️ EMERGENCY WARNING: Seek immediate medical evaluation or call 911 (or your local emergency number) if you experience sudden numbness, weakness on one side of your face or body, difficulty speaking, severe loss of vision, chest pain, or sudden confusion. These can be signs of … Read more

Quick Answer: EMERGENCY WARNING: Seek immediate emergency medical care if you or a family member experience severe shortness of breath, persistent chest pain or pressure, new confusion, pale or blue-tinted lips/skin, or an inability to stay awake. Call 911 or visit the nearest emergency room without delay. Understanding the Cicada BA.3.2 Subvariant The SARS-CoV-2 virus … Read more

Medically Reviewed and Compiled by Dr. Adam N. Khan, MD. Key Takeways EMERGENCY WARNING: If you or someone in your care experiences difficulty breathing, persistent gasping, a high-pitched squeaking sound when breathing in (stridor), inability to swallow saliva, or bluish lips/face, call 911 or go to the nearest emergency room immediately. These symptoms indicate potential … Read more

Medically reviewed by Dr. Adam N. Khan, MD · Last updated October 7, 2026 · 14-minute read A quick note before you read: This is general health information, not personal medical advice, and it cannot diagnose you. If you have trouble breathing, can’t swallow liquids, are drooling, or your throat pain is far worse than … Read more

Medically reviewed by Dr. Adam N. Khan, MD · Last updated October 5, 2026 · 10-minute read A quick note before you read: This is general health information, not personal medical advice, and it can’t tell you what your own risk is only your clinician can do that. What it can do is show you … Read more

Medically Reviewed and Compiled by Dr. Adam N. Khan, MD. Quick Summary: EMERGENCY WARNING: If your dog develops severe respiratory distress—such as rapid breathing, open-mouth panting while at rest, blue or pale gums, or extreme lethargy—contact your veterinarian or local emergency animal hospital immediately. Understanding COVID-19 Transmission Between Humans and Dogs When the SARS-CoV-2 pandemic … Read more