Staphylococcus aureus

0 Staphylococcus aureus is a gram-positive, round bacterium which can cause a number of disease in humans and animals
May 9, 2017 at 5:26 pm  •  Posted in Staph aureus by  •  0 Comments

Staphylococcus aureus

Staphylococcus aureus is a gram-positive, round bacterium which can cause a number of disease in humans and animals. From food poisoning to skin infections like boils, pimples, abscesses etc, as well as respiratory disorders like sinusitis, Staphylococcus aureus infection can cause various kinds of infection. The bacterium is commonly found in the nose, the respiratory tract or on the skin.

Diseases caused by Staphylococcus aureus

Staphylococcus aureus is a highly resilient bacterium which can affect the human as well as animal body in a number of adverse ways. It can lead to various kinds of infections, ranging from mild to severe, which can even be fatal. Here are some of the diseases commonly caused by it.

  • Skin infections

Several kinds of skin infections like pimples, boils, folliculitis, cellulitis, as well as severe soft-tissue infections or even abscesses etc can be caused by Staphylococcus aureus bacterium. It is also seen to be commonly present in people who suffer from atopic dermatitis, attacking areas which are prone to sweating like armpits, hair, scalp etc.

  • Bone and joint infections

It is commonly seen that Staphylococcus aureus is accountable for all major bone and joint infections. It can manifest in osteomyelitis or septic arthritis or even an infection from a replacement joint surgery.

  • Food poisoning

Staphylococcus aureus is also a cause of food poisoning. It generates toxins which produce cause severe diarrhoea and food poisoning in humans. It causes extreme discomfort and pain which can even last up to 3-4 days or more.

  • Animal infections

Staphylococcus aureus infection does not affect human beings only. The bacterium can survive on a number of animals like dogs, cats, horses etc. It can cause bumblef

oot in chickens and mastitis in dairy cows.

  • Risk

Without antibiotic treatment, staph infection has a huge fatality rate, of around 80%. Even with antibiotic treatment, there is a 15% to 50% of death depending on the health and age of the patient. The fatality rate also depends on the antibiotic resistance of the particular strain.


Staph infection can be treated with penicillin. However in cases of penicillin resistant strains of the bacteria, other antibiotics or a combination of several are employed the keep the infection in check. It is contagious and hence any kind of contact with the infected wound must be contained.


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