Tag: immune system

How Vaccines Work

The COVID-19 pandemic is a reminder of the important role immunization plays in preventing infections. Vaccinations contribute to stopping epidemics/pandemics  and greatly benefit public health. Like polio and influenza before it, vaccinations against the novel coronavirus will be a major part of trying to stop the global pandemic. Vaccines are vital to herd immunity and preventing infection without causing the disease.

The Immune System

To understand how vaccinations work, it is necessary to know something about the human immune system which is responsible for fighting off and protecting against infection. The primary component is white blood cells. To fight infection, white blood cells react to proteins on the virus or bacteria surface called antigens. White blood cells can fight infections directly or produce a variety of defenses. There are many types of white blood cells, each playing a different role in the body’s fight against bacteria and viruses.

Neutrophils and Macrophages

White blood cells called neutrophils

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How Do I Boost My Immune System?

by Richard Sagall, M.D.

With colder weather fast approaching everyone is concerned over coming down with colds, the flu, or other winter-time illnesses. It makes sense to take steps to stay healthy. The idea of “boosting your immune system” sounds inviting. But what does this really mean, and can it be done?

What is the Immune System?

The immune system consists of the parts of the body that fight infections. There are three body parts generally considered part of the immune system.

·   The lymphatic system consists of lymph nodes that filter the lymph fluid and lymph vessels that carry away waste materials. Lymphocytes also enter the lymph fluid and destroy bacteria, viruses and other foreign substances.

·   The bone marrow produces various types of white blood cells that fight infection. Red blood cells are also made in the bone marrow, but they have no role in immunity.

·   The spleen filters the blood, removing old and damaged red blood cells, white blood cells, platelets, and other foreign substances.

What Does the Immune System Do?

Simply put, the immune system keeps you healthy by fighting off invaders

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Welcome to the NeedyMeds Voice! We look forward to presenting you with timely, provocative pieces on healthcare reform, patient advocacy, medication and healthcare access, and other health-related news. Our goals are to educate, enlighten, and elucidate; together, we will try to make sense of the myriad and ongoing healthcare-related changes in the U.S. today.