Virus Articles

Browse eMedTV's wide range of articles related to virus including topics such as stomach virus, avian flu virus, and yellow fever. Use the search box at the top-right corner of the page to find information about other health topics.

Descriptions of Featured Virus Articles

Bird Flu

The bird flu is generally rare in humans, but there is concern that it may soon cause a pandemic. This eMedTV resource examines bird flu in humans and birds (especially the H5N1 strain), including transmission, symptoms, and treatment options.

Yellow Fever

Yellow fever is a serious disease caused by a specific virus. This page from the eMedTV site discusses this disease in detail, including how it is transmitted, possible symptoms, treatment options, and more.

Smallpox

Smallpox is an infectious disease that is characterized by bumps on the face and body. This part of the eMedTV site offers an in-depth look at the history of this disease, with information on its causes, symptoms, and prevention methods.

Yellow Fever Virus

Found in parts of Africa and South America, the yellow fever virus is a virus that causes yellow fever. This eMedTV segment discusses this virus in detail, including information on how it is transmitted by mosquitoes.

Stomach Virus

A "stomach virus" does not affect the stomach -- it affects the small intestine. This eMedTV article identifies the four types of viruses that may cause the "stomach flu," describes the symptoms they cause, and explains how they are treated.

Symptoms of Bird Flu

Typical influenza-like symptoms, such as fever, sore throat, and muscle aches, can occur with bird flu. This eMedTV article describes these possible signs and symptoms of bird flu in detail, in addition to the potentially life-threatening symptoms.

Norovirus

A norovirus is a highly contagious virus that can cause what is often called "stomach flu." This page of the eMedTV Web site explains this virus in detail, including how it is transmitted, the illnesses it may cause, and more.

H5N1

While the H5N1 virus doesn't usually infect people, 130 human cases have been reported since January 2004. This eMedTV resource discusses this virus in detail, including where it is prevalent, how it spreads, and preparations against a pandemic.

Bird Flu Symptoms

Fever and body aches are common, often mild, bird flu symptoms. However, as this eMedTV segment explains, symptoms of bird flu can also be more life-threatening, including things such as pneumonia and acute respiratory distress.

Bird Flu Pandemic

A pandemic is a worldwide outbreak of a new virus strain that causes serious illness and spreads easily. This eMedTV article describes a bird flu pandemic in detail, including the stages and phases and when WHO makes the determination.

H5N1 Virus

The H5N1 virus does not usually infect people. As this page of the eMedTV library explains, human cases are due to direct contact with infected poultry or contaminated surfaces. Health officials are monitoring H5N1, however, in case of outbreak.

Avian Flu Virus

Human infection with the avian flu virus is rare, and is often associated with contact with infected birds. This eMedTV article explains the virus in detail, including the various types and the potential threat posed to humans.

What Is Bird Flu?

Viruses that cause bird flu occur naturally in wild birds worldwide, but are rarely found in humans. This eMedTV Web page answers the question, "What is bird flu?" in detail, including why it's a concern for humans.

Bird Flu Vaccine

There is no bird flu vaccine available at this time. However, as this eMedTV article explains, there are certain antiviral drugs (such as zanamavir) that may be used to treat this type of flu. This page also discusses current vaccine research.

Influenza Virus

The influenza virus is not only highly contagious -- it also is highly changeable. This page of the eMedTV Web site examines this virus in detail, including subtypes, how it is transmitted, and what makes it so changeable.

HIV Virus

The HIV virus has to make a copy of its DNA inside a host cell in order to replicate. This page of the eMedTV Web site discusses the organization of this virus and explains which class of viruses it belongs to.

Smallpox Symptoms Information

Flu-like symptoms, such as high fever, tiredness, and body aches, can occur with smallpox. As this eMedTV page explains, however, smallpox symptoms and signs gradually develop into rashes in the mouth, throat, and eventually the rest of the body.

Rhinovirus

The rhinovirus is the cause of the common cold in an estimated 30 to 35 percent of all adults. This eMedTV article explains how this virus is transmitted and offers treatment tips and prevention strategies.

Yellow Fever Symptoms

Mild symptoms of yellow fever can include fever, headache, bloody nose, and nausea. This section of the eMedTV archives describes these signs and symptoms in more detail and explains the three stages of serious symptoms.

Cause of Smallpox

The cause of smallpox is directly linked to the variola virus. This section of the eMedTV archives explores this virus in more detail, offering information on the transmission of the disease and the success of the smallpox vaccination.