H1N1 is a highly contagious flu virus that was first detected in the United States in April of 2009, according to Flu.gov. The composition of this novel form of influenza is unique in that it contains bits of genes from flu viruses that normally impact pigs in Europe, and in Asia, birds and humans. H1N1 was termed "swine flu" due to its origination though it has never been transmitted through pork products. Symptoms of H1N1 swine flu are quite similar to those attributed to the seasonal flu.
Viral Symptoms
Like other viruses, including the seasonal flu virus, H1N1 can cause a general feeling of illness, fever, chills and body aches. Individuals with H1N1 will be moderately to severely tired.
Congestion and Drainage
The swine flu often causes coughing, sore throat, runny nose or nasal congestion.
Pain
Headaches, body aches or muscle aches are often what separate the flu from the common cold. The swine flu is likely to cause moderate to severe pain and aches, according to Flu.gov. The symptoms may resemble the seasonal flu but could be more severe.
Gastrointestinal Symptoms
Diarrhea and vomiting may accompany the flu. Persistent or severe episodes of either should be treated with emergency medical attention. This is especially true in the elderly, infants or children. The risk of dehydration with a fever, reduced appetite and the loss of fluids through diarrhea and vomiting is greatly increased. The U.S. Centers for Disease Control & Prevention (CDC) warns caregivers to watch children and infants for signs of dehydration such as crying without tears, reduced appetite or a lack of interest in drinking.
Breathing Difficulties
Any child or infant who breathes rapidly or any person who struggles to breathe requires emergency medical care. A child may turn blue or have a gray skin color from asphyxiation, according to Flu.gov.
Other Serious Symptoms
Infants and children should be taken in for medical treatment if they have trouble waking, are not interacting with others or are so uncomfortable that they do not want to be held. Adults should seek medical care if they have pain or pressure in the chest or abdomen, or sudden dizziness or confusion, according to Flu.gov. Any person who experiences an improvement in flu-like symptoms but then experiences a cough and fever should seek medical attention immediately.
