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Causes of Flu

Primary Cause of Flu

The primary cause of Flu is the result:

  • of transmission of an infectious agent by another person by one or more of the following: saliva, air, cough, fecal-oral route, surfaces, blood, needles, blood transfusions, sexual contact, mother to fetus, etc.

Flu Causes: Risk Factors

The following conditions have been cited in various sources as potentially causal risk factors related to Flu:

Flu: Related Medical Conditions

To research the causes of Flu, consider researching the causes of these these diseases that may be similar, or associated with Flu:

Flu: Causes and Types

Causes of Types of Flu: Review the cause informationfor the various types of Flu:

Causes of Broader Categories of Flu: Review the causal information about the various more general categories of medical conditions:

Medications or substances causing Flu:

The following drugs, medications, substances or toxins are some of the possible causes of Flu as a symptom. This list is incomplete and various other drugs or substances may cause your symptoms. Always advise your doctor of any medications or treatments you are using, including prescription, over-the-counter, supplements, herbal or alternative treatments.

What causes Flu?

Causes: Flu: A variety of different respiratory influenza viruses.

Medical news summaries relating to Flu:

The following medical news items are relevant to causes of Flu:

Related information on causes of Flu:

As with all medical conditions, there may be many causal factors. Further relevant information on causes of Flu may be found in:


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