The influenza virus primarily attacks your respiratory tract: your nose, throat, and the tubes that lead to your lungs. So symptoms like a runny nose, a phlegmy cough, and a sore throat all make a lot of sense.
Does influenza attack red blood cells?
The name hemagglutinin refers to the ability of influenza to agglutinate red blood cells: the virus is covered with many hemagglutinin molecules, which together can glue many red blood cells together into a visible clump.
Which symptom is considered a serious complication from influenza?
Flu Complications Sinus and ear infections are examples of moderate complications from flu, while pneumonia is a serious flu complication that can result from either flu virus infection alone or from co-infection of flu virus and bacteria.
How long does Influenza A stay in your system?
For most healthy people, the flu is an uncomfortable but short-term illness that resolves itself as the immune system fights it off. Symptoms usually appear from one to four days after exposure to the virus, and they last five to seven days.
What organs are affected by influenza?
Influenza is a viral infection that attacks your respiratory system — your nose, throat and lungs.
Which of the following are symptoms of influenza infection?
Symptoms of influenza can include:
- Sudden onset of high fever.
- Headache, muscle aches and joint pain.
- Cough (usually dry)
- Chills.
- Sore throat.
- Nasal congestion and runny nose.
- Fatigue.
- Stomach symptoms such as nausea, vomiting or diarrhea may occur but are more common in children than adults.
Does flu cause anemia?
Few cases of influenza causing hemolytic anemia have been reported in the literature. There have been reports of oseltamivir causing hemolytic anemia, but our patient presented with evidence of hemolytic anemia before initiation of the medication.
Can the flu cause long-term effects?
They include viral or bacterial pneumonia, dehydration, and ear infections and sinus infections, especially in children. The flu can worsen long-term medical conditions, like congestive heart failure, asthma, or diabetes.
How long are you contagious with influenza A?
When Flu Spreads Most healthy adults may be able to infect others beginning 1 day before symptoms develop and up to 5 to 7 days after becoming sick. Children and some people with weakened immune systems may pass the virus for longer than 7 days.
What to know about influenza A?
Influenza, or flu, is a viral infection that affects the respiratory system. Influenza A is one of four types of the virus, which can cause a cough, body aches, and a sore throat. The influenza A virus is highly contagious. It can spread through tiny droplets of bodily fluid from coughing, sneezing, or talking.
What are the first signs of the flu?
Stuffy Nose/Congestion. I think a lot of people mistake the cold for the flu and vice-versa because a stuffy nose seems the be the start of everything bad in
What are the signs and symptoms of influenza?
Days 1–3: Sudden appearance of fever,headache,muscle pain and weakness,dry cough,sore throat and sometimes a stuffy nose.
What is the prognosis for influenza?
Influenza Prognosis. Influenza is an acute respiratory illness caused by infection with influenza viruses. Most people with influenza usually recover within one week, although cough and fatigue may persist longer. However, some people are more prone to developing complications that can result in hospitalizations and, occasionally, death.
