Evidence-Based Medical Knowledge You Can Trust
Infectious diseases are illnesses caused by bacteria, viruses, fungi, or parasites, spreading through contact, food, water, or vectors.
Medically Reviewed and Compiled by Dr. Adam N. Khan, MD. Quick Summary The Spring 2026 COVID booster program is designed to protect those at the highest risk of getting very sick. Health authorities, including the CDC and NHS, recommend this dose for adults aged 75 and older, residents of care homes, and anyone aged 6 … 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 or shortness of breath at rest, persistent pain or pressure in the chest, new-onset confusion, inability to wake or stay awake, or a pale, gray, or blue discoloration on the … Read more
Medically Reviewed and Compiled by Dr. Adam N. Khan, MD. Quick Answer: Yes, KN95 masks are highly effective at protecting you from COVID-19. They are designed to filter out at least 95% of tiny airborne particles, including the virus that causes COVID-19. Because they fit tighter than standard surgical or cloth masks, they offer a … Read more
COVID-19 is generally more contagious than influenza A, especially with recent variants. However, real-world spread depends on immunity levels, vaccination status, and exposure settings. Introduction Respiratory viruses spread every year, but two infections cause the most concern: influenza A and COVID-19. Both can cause outbreaks, hospitalizations, and deaths. Patients often ask the same question: what … Read more
Yes, COVID-19 boosters are still recommended in 2025. Also Read About: Bay Area Health Officials Recommend Flu Covid Shots Despite CDC Dropping Universal Recommendations in 2025 Imagine this: It’s mid-winter 2025, and you’re scrolling through your feed when a friend shares a heartbreaking story—a vibrant 68-year-old grandmother, otherwise healthy, sidelined for weeks by a breakthrough … Read more
As we move deeper into 2025 and 2026, the landscape of immunization against COVID-19 continues to evolve. Vaccination remains a cornerstone of public health strategy worldwide, but with ongoing updates to vaccine formulations and booster recommendations, understanding the nuances of side effects is more important than ever. This article offers a comprehensive, expert-driven exploration of … Read more
As we navigate the evolving landscape of the COVID-19 pandemic in 2025–2026, understanding the current COVID symptoms remains crucial for personal health and public safety. While much has been learned since the virus first emerged, the virus’s mutations, vaccination impacts, and changing population immunity have shifted the symptom profile in subtle yet significant ways. This … Read more
Medically Reviewed and Compiled by: Dr. Adam N. Khan, MD. Quick Summary: EMERGENCY WARNING If you or a loved one experiences severe trouble breathing, persistent pain or pressure in the chest, new confusion, inability to wake or stay awake, or pale, gray, or blue-colored skin, lips, or nail beds, call 911 or go to the … 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 pain or pressure in the chest, new confusion, inability to wake or stay awake, or pale, gray, or blue skin, lips, or nail beds, seek immediate emergency medical care … Read more
Medically Reviewed and Compiled by Dr. Adam N. Khan, MD. Quick Takeways EMERGENCY WARNING: If you or someone in your care experiences severe trouble breathing, persistent chest pain or pressure, new-onset confusion, inability to wake or stay awake, or a pale, gray, or blue discoloration on the lips, skin, or nail beds, seek immediate emergency … 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 severe shortness of breath, persistent pain or pressure in the chest, new confusion, trouble waking up or staying awake, or pale, gray, or blue-colored skin, lips, or nail beds, call 911 or … Read more
It’s a question that’s lingered in the back of many minds since the early days of the pandemic: could that sudden bout of loose stools be more than just something you ate? As we navigate the post-pandemic landscape in 2025, with COVID-19 no longer the overwhelming crisis it once was but still a persistent player … Read more
In the ever-evolving landscape of public health, few questions linger as persistently as “when are you contagious with COVID?” Even as we’ve moved past the height of the pandemic, with vaccines and treatments becoming more sophisticated, the virus—SARS-CoV-2—continues to surprise us. Variants like Omicron’s descendants remind us that understanding contagious periods isn’t just academic; it’s … Read more
Imagine this: You’ve shaken off the worst of your COVID-19 symptoms—fever gone, cough fading, energy trickling back. But that home antigen test? Still flashing a stubborn pink line. Frustrating, right? If you’ve ever wondered, how long can you test positive for COVID, you’re not alone. In the ever-evolving landscape of this virus, the answer isn’t a … Read more
As we navigate the evolving landscape of the COVID-19 pandemic in 2025, understanding the latest causes and treatments is more critical than ever. This article offers a deeply researched, nuanced exploration of the virus’s current behavior, emerging variants, and cutting-edge therapeutic strategies. Designed to inform and empower, it integrates expert analysis, data interpretation, and practical … Read more