Gram positive bacteria |
Staphylococcus spp. |
Most common |
They cause infection which encompasses causes skin lesions like furuncles, and cellulitis; and sometimes pneumonia, endocarditis, and osteomyelitis, along with biofilm formation. |
β-Hemolytic group A Streptococcus
|
Common |
They cause strep throat, enlarged lymph nodes in the neck, enlarged tonsils and rash. |
Enterococcus spp. |
Common |
They cause bacteremia, and infective endocarditis, UTIs, meningitis, and rarely causes intra-abdominal infections. |
Gram negative bacteria |
Acinetobacter baumannii
|
Most common, dangerous |
It causes diseases such as pneumonia and meningitis, bloodstream infections (bacteremia and sepsis), delays in wound healing, graft losses, UTIs. |
Klebsiella pneumoniae
|
Most common |
It causes endophthalmitis, pyrogenic liver abscess, splenic abscess, necrotizing skin infection, soft tissue infection, meningitis, antibiotic-associated hemorrhagic colitis, bacteremia, pneumonia, Lemierre syndrome. |
Pseudomonas aeruginosa
|
Most common, concerning |
It causes infections in the blood, lungs (pneumonia), soft tissue infection, UTIs. |
Escherichia coli
|
Common |
It causes enteric diseases, such as diarrhoea/dysentery, colitis, meningitis, low grade fever, vomiting, renal impairment. |
Multidrug resistant bacteria |
P. aeruginosa
|
Most common, dangerous |
It causes infections in the blood, lungs (pneumonia), soft tissue infection, UTIs. |
A. baumannii
|
Most common |
It causes diseases such as pneumonia and meningitis, bloodstream infections (bacteremia and sepsis), delays in wound healing, graft losses, UTIs. |
Klebsiella pneumoniae
|
Most common, concerning |
It causes endophthalmitis, pyrogenic liver abscess, splenic abscess, necrotizing skin infection, soft tissue infection, meningitis, antibiotic-associated hemorrhagic colitis, bacteremia, pneumonia, Lemierre syndrome. |
Methicillin-resistant Staphylococcus aureus
|
Common, dangerous |
MRSA causes skin infections like atopic dermatitis, followed by invasive infections like osteomyelitis, meningitis, lung abscess, pneumonia, brain abscess and central nervous system infection. |
Escherichia coli
|
Common |
It causes enteric diseases, such as diarrhoea/dysentery, colitis, meningitis, low grade fever, vomiting, renal impairment. |
Proteus mirabilis
|
Common |
It mostly causes UTIs, along with meningoencephalitis, empyema, and osteomyelitis. |
Fungi |
Candida spp. |
Most common |
They cause intense itching. Symptoms also include red, growing skin rash, rash on the skin folds, genitals, middle of the body, buttocks, under the breasts, and other areas of skin.
|
Aspergillus fumigatus
|
Most common |
It causes infections usually in people who have weakened immune systems. |
Saccharomyces boulardii
|
Uncommon |
It causes fungemia. |
Mucor spp. |
Uncommon, dangerous |
They cause mucormycosis; fatal. |
Viruses |
Herpes simplex virus |
Most common, very dangerous |
It affects production of antibodies, cytokines, T-cells, IL-2, etc. Reactivation of the virus causes acute respiratory distress syndrome, pneumonia, liver necrosis, and encephalitis. |
Cytomegalovirus |
Most common, very dangerous |
It increases production of cytokines and causes hyperactivity of T helper cells and macrophages. It leads to organ dysfunction, pneumonia, encephalitis, and colitis. |
Varicella zoster virus |
Common, dangerous |
It causes shingles; post-herpetic neuralgia and delayed healing. |
Poxvirus |
Rare |
It causes formation of lesions and scabs. |
Human immunodeficiency virus |
Rare |
It decreases population of CD4+ T-cells. It eventually leads to chronic multi-organ diseases and severe impairments within the central nervous system. |
Papillomavirus |
Rare |
It causes intraepithelial neoplasias. |