The flu is, for most people who catch it, a real nuisance — but not much more, as they'll recover in a week or two, without antiviral drugs or needing to go to hospital. Influenza also has a darker side, however; it can be severe and even life-threatening. The CDC reports that about 900,000 people in the US had been hospitalized with the flu, while some 80,000 people passed away for flu-related reasons in the past year alone.
Which medical conditions can put you at risk of serious complications from influenza?
Vulnerable groups include children under the age of five, with those under two being at special risk, pregnant women, and the elderly. If you have a chronic medical condition, you are also at a higher risk of suffering serious complications from the flu. Pay special attention if you suffer from:
- Heart disease (like congestive heart failure, coronary artery disease, and congenital heart disease)
- Liver disease
- Kidney disease
- Metabolic disorders
- Blood disorders such as sickle cell anemia
- Asthma — asthma patients aren't more likely to catch a flu than anyone else, but they do have a higher risk of suffering complications. People who have asthma usually experience more severe symptoms when they have influenza, and they also have a greater risk of developing pneumonia.
- Chronic lung disease (like cystic fibrosis and chronic obstructive pulmonary disease)
- People who are immunocompromised, including people who are taking steroids, receiving cancer treatment, or people who have HIV.
Influenza vs the common cold: How to tell them apart
Chronic health conditions don’t only increase your odds of catching the flu, they also make you more vulnerable to common colds. The symptoms are likely to stick around for longer, and be more serious than they would be in a healthy person. The flu is much more serious than a cold, though — severe complications are much more likely, so you need to be able to tell the two apart.
Influenza has more serious symptoms, like:
- As with the cold, you're likely to experience a sore throat, cough, and a runny or blocked nose
- The majority of people with the flu will run a fever
- Body or muscle aches, all over, are what really sets the flu apart from a common cold
- Feeling very tired, to the point you're bed-bound, is also common
- Vomiting and diarrhea — though most common in children with the flu, some adults also experience these symptoms
If you have a chronic condition and think you have a common cold or the flu should you seek medical help?
Yes — and we’d add that it’s important to discuss this with your doctor in advance. Ask what you should be on the lookout for, and when you should see your doctor rather than trying to treat yourself at home with over the counter medications or rest.
In the case of the flu, you should really see your doctor at the start of the flu season (October) and arm your body with the one thing that is most likely to prevent both the flu and any complications if you do get it anyway — your annual flu shot, of course.
You’d be surprised to find that research revealed that most children with chronic medical conditions, including asthma, still don’t get an annual flu shot. It’s very important, then, to point out that while a flu shot doesn't guarantee that a person won’t get influenza, it certainly does:
- Greatly reduce the risk that you’ll catch the flu
- Make the flu milder if you do get it
- Lower your odds of suffering complications and needing to be hospitalized
That's that then — your friendly-neighborhood reminder to get a flu shot.
Influenza: When should you go to the ER?
The signs that children with a flu need to go to the ER are:
- The child has trouble breathing or is breathing rapidly
- The child has a blue skin color
- They aren't waking up or they aren't doing much (are lethargic)
- Your child is dehydrated
- They have a fever with a rash
- They are so irritated that they struggle when they are held
Adults with the flu should go straight to the ER if:
- You are throwing up often or a lot
- You feel unexpected dizziness
- You are confused
- You have trouble breathing
- You feel pressure or pain in your abdomen or chest.
- You have flu-like symptoms which get better but come back with a bad cough and a fever.