Influenza Explained: Causes, Treatments, and the Role of Medical Insurance in Managing Costs

Influenza (commonly referred to as the flu) is more than just a seasonal nuisance—it may lead to serious health complications for those with underlying medical conditions. For example, if untreated, influenza may escalate into pneumonia.

Additionally, influenza may exacerbate chronic health issues like asthma and heart disease. It may also lead to other serious complications like myocarditis (inflammation of the heart), encephalitis (inflammation of the brain)—and even sepsis.

Since the elderly, children, and individuals with underlying medical conditions are at risk of influenza and its effects, understanding its causes, symptoms, treatments, and financial implications is imperative for parents and adults alike.

This educational guide aims to provide valuable insights into the disease while highlighting how medical insurance can help alleviate the unexpected financial burdens associated with its treatment.

What is Influenza?

Influenza is a contagious respiratory viral infection of the nose, throat and lungs. Its symptoms include fever, chills, a generalised feeling of weakness and pain in the muscles, stuffy nose, headache, and chills.

It is caused by influenza viruses, which are classified into different types— the most common being Influenza A and Influenza B. Influenza A and Influenza B are responsible for seasonal epidemics in humans.

Influenza C may cause mild respiratory illness but does not lead to epidemics. Influenza D primarily affects cattle and isn’t known to infect humans.

Influenza A vs B

Despite both being responsible for seasonal flu outbreaks in humans, Influenza A is the more common and versatile of the two. It can infect humans, birds, and pigs. In fact, due to its ability to mutate quickly, it may result in more severe illness than Influenza B.

Influenza B is generally associated with milder illness compared to Influenza A. While it can still cause significant morbidity, especially among children, it doesn’t lead to pandemics. This is because it lacks the same capacity for animal transmission and mutation as Influenza A.

However, influenza A and B have similar symptoms, including cough, fatigue, body pains, fever, and sore throat. Because influenza A is more prevalent and may infect both humans and animals, it can lead to massive epidemics.

Flu B, on the other hand, is confined to smaller geographic areas, exclusively affects humans, and is typically milder. But it can still be dangerous, particularly for kids.

Overall, the severity of both Influenza viruses depends on various factors, including the specific strain, the individual's health, and whether they’ve been vaccinated. Nonetheless, both strains can lead to severe complications without prompt treatment.

Influenza symptoms

Common symptoms of Influenza include:

• Fever or chills.

• Sore throat.

• Runny or stuffy nose.

• Muscle or body aches.

• Vomiting or diarrhoea (more common in children).

 

Is Influenza dangerous?

While many people recover from Influenza without requiring medical treatment, it may be dangerous for specific groups of the population. Individuals at higher risk include young children, elderly adults, pregnant women, and people with chronic conditions such as asthma or diabetes.

In severe cases, Influenza may lead to complications like pneumonia or the exacerbation of other pre-existing conditions.

How long does Influenza last?

The duration of Influenza varies from person to person but typically lasts about one week. Symptoms usually begin abruptly and can persist for several days before gradually improving. Most individuals start feeling better within a week—although fatigue may linger longer.

What causes Influenza?

The Influenza condition is caused by influenza viruses that spread via respiratory droplets. In practice, when an infected person coughs, sneezes, or talks, they release virus-containing droplets into the air, which others can inhale.

These droplets can travel short distances and typically require about six feet for transmission to occur. Furthermore, aerosol transmission may happen in confined spaces, where smaller particles may remain suspended in the air for longer periods.

People can also indirectly get the flu by touching surfaces with the virus and then subsequently touching their mouth, nose, or eyes.

Is Influenza contagious?

Yes, Influenza is highly contagious. Individuals with the flu are most infectious in the first three to four days after symptoms appear, though some can spread the virus a day before signs begin and up to a week after becoming ill.

Preventing transmission involves proper hygiene practices, including frequent handwashing and averting close contact with sick individuals.

How is Influenza diagnosed?

Influenza is traditionally diagnosed based on symptoms and a physical examination, especially during flu season or outbreaks.

However, to confirm its diagnosis, healthcare professionals may employ an influenza test kit. This is especially imperative in severe cases or when distinguishing influenza from other respiratory illnesses.  

The baseline of these diagnostic tests includes rapid antigen tests, nucleic acid amplification tests and viral cultures. These kits are expressly designed to detect the presence of the virus in nasal or throat swabs.

In practice, rapid tests usually provide results in minutes, making them an invaluable tool during flu season. However, they may not be as accurate as other tests. Generally, viral cultures provide the most definitive results regarding the presence of the influenza virus.

Influenza treatment

Prompt treatment reduces the risk of complications and shortens the duration of the illness. Treatment typically includes:

• Rest: Adequate sleep allows the body to recover. Ideally, it will enable the immune system to function optimally, aiding in the body's fight against the virus.

• Hydration: Drinking plenty of fluids prevents dehydration caused by fever.

• Honey and lemon juice: Honey possesses antimicrobial properties and may soothe a sore throat and reduce coughing. Lemon provides vitamin C, which supports immune function.

• Medications: Antiviral drugs, such as oseltamivir (Tamiflu) or zanamivir (Relenza), can reduce the severity and duration of the flu if taken within 48 hours of symptom onset. Over-the-counter medications may help alleviate specific symptoms like fever or congestion.

• Saltwater gargle: Gargling with warm salt water may help relieve throat pain and reduce mucus buildup.

• Peppermint tea and ginger: Drinking peppermint tea or inhaling steam from hot water infused with peppermint oil may ease respiratory discomfort. Ginger has anti-inflammatory properties that may help soothe muscle aches and reduce nausea.

• Essential oils: Essential oils like eucalyptus or tea tree oil, used in a diffuser or added to steam inhalation, may help relieve chest congestion.

• Probiotic diet: Probiotic-rich foods like yoghurt may enhance immune function and potentially reduce the severity or duration of flu symptoms.

 

Influenza vaccine

One of the most effective ways to prevent Influenza is via vaccination. The influenza vaccine is typically updated annually to protect against the most prevalent strains. While the vaccine doesn't guarantee complete immunity, it appreciably reduces the risk of severe illness, hospitalisation, and complications.

According to the WHO, the most commonly used influenza vaccines are injected-inactivated vaccines. These come in a trivalent (3 strains; TIV) and quadrivalent (4 strains; QIV) design.

For the QIV formulation, there are also high-dose versions that are primarily designed for use in people 65 years or older. There are other types of influenza vaccines: adjuvanted, live-attenuated (LAIV), and, more recently, recombinant influenza vaccines.

Influenza vaccine prices vary depending on location, provider, and insurance coverage. In many cases, insurance policies or government programmes cover the cost partially or fully.

It is important to note that these vaccines maintain an excellent safety profile and are well tolerated by recipients of all ages— including people with underlying health conditions and pregnant women.

Insurance for Influenza

Influenza-related expenses can add up quickly—from doctor's visits and diagnostic tests to antiviral medications and potential hospitalisations. As such, maintaining a comprehensive medical insurance plan can ease the financial burden.

Here are three insurance products worth considering:

PRUMillion Med 2.0

PRUMillion Med 2.0 provides extensive coverage, including high hospitalisation limits and protection against escalating medical costs. It's an excellent choice for those seeking robust protection against severe cases of Influenza requiring hospital stays.

PRUMillion Med Active

PRUMillion Med Active is an active pricing medical insurance plan that emphasises flexibility and comprehensive benefits. It covers a wide range of treatments, including outpatient care, making it ideal for flu-related expenses like influenza test kits and antiviral medications. Additionally, policyholders get an instant 15% discount on their medical insurance charges if they do not make any claims, which encourages a healthy lifestyle.

Conclusion

Overall, anyone concerned about their health during flu season ought to educate themselves about the influenza virus, the signs and symptoms of the infection, and possible treatments. Health insurance reduces the associated expenses to handle this frequent yet potentially catastrophic condition better and minimises financial hardship.

Comprehensive medical insurance plans like PRUMillion Med 2.0, and PRUMillion Med Active can help manage costs effectively, ensuring you receive the care you need without financial strain.

Prepare for flu season by staying informed, practising excellent hygiene, and making use of available insurance resources. With the right knowledge and tools, you can navigate Influenza with confidence and ease.