Influenza is a viral infection of the upper and lower respiratory tracts.

Pneumonia is a viral, bacterial or fungal infection of the lower respiratory respiratory tract affecting the windpipe (Trachea) and the lungs.

 

 

Fact: Pneumonia is a common side effect of other chronic illnesses

Why your character dies

Infection damages the lungs (septic shock). The Lungs swell, oxygen levels in the blood fall to dangerously low levels and carbon monoxide levels rise. Breathing becomes difficult and vital organs, starved of oxygen, fail.

If infection passes into the bloodstream (sepsis), tissue in other organs can be damaged including the brain and heart and cause multi-organ failure.

Viral infections are generally relatvely harmless, but can be extremely contagious and fatal. They are more llikely to be contracted by the healthy and can’t be treated with antibiotics.

Bacterial Infectionss are the most common form of Pneumonia. They are generally contracted by the already weak and unwell and can be aggressive and hard to treat. They can, however, be treated with antibiotics.

Both Viral and Bacterial Pneumonia can be spread by coughing, sneezing, touching and breathing and take 24 – 48 hours to develop. Even sufferers who do not show symptoms can be contagious. This is often the case in ‘walking pneumonia’, a milder dose of the infection that can be mistaken for a cold and be contagious for 10 days.

Only fungal infections are not considered contagious. If contracted by those with a weak immune system the survival rate is, in some cases, as low as 10%

For all types of infections, the Elderly (over 65), young children, those who have an existing medical condition, especially in the lungs or heart, and live or work where the bacteria lives are vulnerable to contracting it and the complications that often come with it. This also applies to anyone with a weak immune system. So we can name the usual suspects, alcoholics, smokers and drug addicts, along with medical conditions and treatments, Diabetes, chemotherapy, HIV/AIDS and some prescription drugs.

Both Flu and Pneumonia don’t care who or what your character is, they are all fair game. To be doomed, all they need to do is have a weak immune system from the usual suspects (smokers, drinkers, drug addicts, Diabetics and HIV/AIDS) and be in the right place at the wrong time.

Influenza

We all know the Flu, because we all get a dose every now and again. Unlike a cold, the Flu can come on suddenly and not always with a fever. Most people recover in a couple of weeks, but it can be severe and the spread of infection can cause a wide range of complications, from sinus and ear infections to the fatal.

Symptoms of the Flu:-

Fever and chills

Cough and sore throat

Runny and stuffy nose

Muscle, body aches and fatigue

Headaches

Some people may have vomiting and diarrhea, though this is more common in children than adults.

“Spanish Flu killed upward of 50 million worldwide”

The epidemic seasonal severe flu virus (respiratory syncytial virus – HRSV) that appears in Winter in temperate climates can be life threatening and extremely contagious. The 1918 Spanish Flu pandemic killed upwards of 50 million worldwide. The infection can spread into the blood (sepsis) and into the heart (myocarditis), brain (encephalitis), muscles tissues (myositis) and cause multi-organ failure. Existing medical conditions such as asthma and chronic heart disease, can be made worse. Pneumonia is a more common complication, from the Flu virus alone or alongside a bacterial infection. Chronic lung disease can trigger Flu developing into a severe Pneumonia.

Pneumonia

Pneumonia bugs are transmitted by breathing in the bacteria directly or in infected fluid droplets.

The infection causes an inflammation of the air sacs (Alveoli) in the lungs that pass oxygen into the blood and take carbon dioxide away. The infected air sacs can become filled with fluid or pus, damaging tissue and preventing the lungs from working.

Lung Abscess can be a complication of Pneumonia causing blood poisoning (sepsis).

“Viral and Bacterial Pneumonia are contagious even if there are no symptoms”

Symptoms of Pneumonia:-

A cough thay may produce yellow, green or blood tinged phelgm.

Headache, fever, sweating. clammy skin and chills.

Shortness of breath.(Dyspnea)

Stabbing chest pain that gets worse when coughing or breathing deeply.

Loss of appetite, low energy and fatigue.

Older people may have a normal temperature, but be confused.

Viral Pneumonia

Viral Pneumonia is a complication of a cold, bronchitis, measles, chickenpox or flu causing the lungs to swell, blocking the flow of oxygen and affecting breathing. It generally takes 12-36 hours to develop.

Additional symptoms:-

Headaches and muscle pain (Myalgia)

Fast heartbeat and more severe shortness of breath (Dyspnea)

Increase in fever after 12-36 hours

Worsening phlegmy cough that began as a dry cough

Blue tinge to the lips (Cyanosis)

“Complications can develop quickly and include repiratory failure”

“The majority of Spanish Flu” deaths were due to secondary Bacterial Pneumonia”

Bacterial Pneumonia

Bacterial Pneumonia is an acquired infection from breathing the infection in a bacteria filled environment. There are various kinds of Bacterial Pneumonia and ways to catch it, but generally speaking it is contracted by the already ill or have a reduced ability to fight infection

Additional symptoms:-

Temperature as high as 105 degrees F

Profuse sweating

Increased rapid breathing and pulse rate

Blue lips and nailbeds due to lack of oxygen

Confusion or delirium

Ways to catch Bacterial Pneumonia

Aspirational Pneumonia – The bacteria forms when food, drink, saliva, liquids or vomit are inhaled into the lungs rather than being swallowed. This type is more likely to occur if you have a problem swallowing (Dysphagia) as a result of Dementia, Althzeimers, or Stroke, or from becoming overly sedated (semi-conscious and unconscious) from the use of medications, alcohol, or some types of illicit drugs.

Community and Hospital Acquired Pneumonia – Sharing facilities in a community such as colleges, military barracks, prison, or in a hospital or nursing home and sharing an infected water source. Not always serious it includes, what used to be known as Bacterial Influenza and the notorious Legionnaires disease.

Legionnaires disease is a form of Pneumonia from Legionella bacteria infected air borne water droplets, where large quantities of warm water are stored and spread around large buildings such as in air conditioning and showers. In 1985 Stafford District Hospital recorded 175 cases out of which 28 were fatal.

Bacteria will develop in the lungs from any kind of trauma, including introducing foreign objects. Your character may survive being stabbed in the lung, but then die from a bacterial infection around the wound. Many hospital procedures such as anaesthesia, life support, tracheostomy and catheters to drain fluid cause the lungs and airways some measure of trauma and lead to bacterial infection.

It takes 48 – 72 hours after being admitted to develop Pneumonia, most commonly while in an Intensive Care Unit.

MRSA Pneumonia 

MRSA is a bacterial infection spread from open wounds, IV’s and any other procedure that involves inserting a tube in chronically ill patients and is a common cause of pneumonia. Initially it is spread by contact (most often on the hands) and contaminated everyday objects such as towels. It isn’t however confined to hospitals.

MRSA pneumonia can occur in any social gathering such as in sports team through cuts, scratches and injury and usually follows infection with a flu virus. Though it affects the young, the infection causes necrotising pneumonia which kills 75% of those infected and can kill in 24hours

Fungal Pneumonia

The bacteria develops in the mould of rotting plant matter, it can be endemic in developing countries, but it can be contracted anywhere. The spores are breathed in from rotting leaves, compost, dust, trees and crops and bird, rat and bat droppings. It can also be contracted straight into the bloodstream through cuts and abrasions and by inhaling polluted water in near drowning victims. Lab workers working with the fungus are also at risk.

To have a high risk of not surviving your character would need a weak immune system from the likes of AIDS, chemotherapy, a bone marrow or heart, lung transplant and our old friends smoking, drugs, alcohol or Diabetes. Other medical conditions that affect the lungs such as Asthma, Cystic Fybrosis, Bronchitis, Emphysema, and TB can see them to an early grave.

It’s difficult to diagnose and often mistaken for other forms of Pneumonia.

Addtitional Symptoms of Fungal Pneumonia:-

Particularly nasty, the infection can spread from the lungs to organs such as the heart, brain, skin, liver and eyes. It can cause blood poisoning (sepsis), invade blood vessels killing off organ tissues (see Lung Abscess) and cause blindness and coughing up blood.

 “Breathing in bacteria spores from compost can be fatal”

 

 

 

 

Image Attributes:-

Respiratory Tracts – By Nephron – Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=9097954

References:-

https://emedicine.medscape.com/article/300341-overview#a3

https://www.theguardian.com/society/2007/jan/19/health.medicineandhealth2https://www.healthline.com/health/bacterial-pneumonia#symptoms2

https://www.healthline.com/health/pneumonia#types-and-causes3

http://www.bbc.co.uk/science/0/21969416

https://www.msdmanuals.com/en-gb/professional/pulmonary-disorders/pneumonia/community-acquired-pneumonia

https://emedicine.medscape.com/article/234753-overview

https://www.healthline.com/health/pneumonia#is-it-contagious4https://medlineplus.gov/ency/article/000073.htm

http://www.lung.org/lung-health-and-diseases/lung-disease-lookup/pneumonia/learn-about-pneumonia.html

https://www.healthline.com/health/viral-pneumonia#symptoms2

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