Necrotizing
Septicemia is an infection that occurs when bacteria enter the bloodstream and spread. It can lead to sepsis, the body's reaction to the infection, which can cause organ damage and even death.
For example, bacteria in your intestines (gut) help break down the food you eat so your body can digest it. However, some types of bacteria can cause bacterial infections, which in turn can cause sepsis. Sepsis, which was often called blood poisoning, is the body's life-threatening response to infection.
Cellulitis, impetigo, and folliculitis are the most common bacterial skin infections seen by the family physician.
Staphylococcus Aureus (MRSA)
More commonly known as MRSA (which stands for Methicillin-resistant Staphylococcus aureus), this 'superbug' is very easily spread through human contact and can cause a range of illnesses from skin disorders to deadly diseases like meningitis and pneumonia.
Beneficial, harmful, and opportunistic bacteria
In contrast, bad bacteria have adverse effects on the body. Representative examples include Clostridium perfringens, Staphylococcus, and Escherichia coli (E. coli; toxic strain). They inhibit health by triggering disease and promoting aging.
Some infections can cause long-term inflammation in a part of the body. This can lead to changes in the affected cells and in nearby immune cells, which can eventually lead to cancer.
Sepsis is the body's extreme response to an infection. It is a life-threatening medical emergency. Sepsis happens when an infection you already have triggers a chain reaction throughout your body.
Generally speaking, our immune systems clear viral infections more easily than bacterial infections. Overall, viral infections can be a little less severe than bacterial infections, meaning your fever might be lower with a viral infection than a bacterial infection.
The pathogen associated with the most deaths globally was S. aureus, with 1.1 million deaths.
S aureus was the leading bacterial cause of death in 135 countries and was associated with the most deaths in people over 15 years (940,000).
"Big Three" Infectious Diseases: Tuberculosis, Malaria and HIV/AIDS.
Many viral and bacterial infections can be treated at home or with urgent care. However, you may need go to the emergency room if your symptoms are severe or if you are in a high-risk group.
Healthcare-Acquired Infections ( HAIs ), sometimes called Healthcare-Associated Infections, are infections that you get while receiving treatment at a healthcare facility, like a hospital, or from a healthcare professional, like a doctor or nurse.
Some viruses can disrupt signaling that normally keeps cell growth and proliferation in check. Also, some infections weaken the immune system, making the body less able to fight off other cancer-causing infections. And some viruses, bacteria, and parasites also cause chronic inflammation, which may lead to cancer.
Mouth: No amount of brushing or rinsing can help in keeping the mouth clean. Our mouth is a host to more than 600 types of bacteria and these are required for maintaining the pH in the mouth.
The majority of the bacteria found in the body live in the human gut. There are billions of bacteria living there (Figure 2).
Species commonly found in humans: Staphylococcus epidermidis, Staphylococcus aureus (potential pathogen). What it does: This is one of the most common microbes found on the human skin and nose. About 25% of healthy people carry this bacteria, according to the CDC.