What Is Acinetobacter Baumannii?

What Is Acinetobacter Baumannii?

Acinetobacter square measure gram-negative aerobic bacilli that belong to the family Neisseriaceae. {they square measure|they’re} present and may survive on dry surfaces for up to a month and are unremarkably carried on the skin of health care employees, increasing the chance of patients being colonized and medical instrumentality being contaminated. There square measure several species of Acinetobacter; all will cause human sickness, but A. Baumannii (AB) accounts for concerning eightieth of infections.

Acinetobacter Risks

Healthy individuals have a really low risk of obtaining associate A. baumannii infection, consistent with the office.

The following factors increase the danger of infection:

Having a weakened system
Chronic respiratory organ sickness


Acinetobacter microorganism isn’t mobile, however, are often unfold through direct contact with surfaces, objects, or the skin of individuals that square measure contaminated with A. baumannii.

Acinetobacter Symptoms

Acinetobacter has associated opportunist bacteria that causes a range completely different|of various} diseases with different symptoms.


Types of attainable A. baumannii infections include:

blood infections (bacteremia and sepsis)

infectious disease (an infection or inflammation of the membrane, the membranes covering the brain and spinal cord)

Symptoms of A. baumannii infections square measure usually clinically indistinguishable from those of infections caused by alternative opportunist microorganism, equivalent to enterobacteria pneumoniae and eubacteria pneumoniae.

Bloodstream infections usually at the start cause symptoms like fever and chills, rash, and confusion or alternative altered mental states, associated square measure usually related to an elevated carboxylic acid level that’s found with severe infection.


Meningitis could cause variety of flu-like symptoms, together with fever, headache, confusion, sensitivity to bright light-weight, and nausea (with or while not vomiting).

Pneumonia could cause a spread of symptoms, together with however not restricted to:


Respiration issues
Muscle pain and pain
Cough, typically with yellow, green, or bloody mucous secretion


In some cases, A. baumannii could colonize a website, equivalent to associate open wound or a surgical process website, while not inflicting any infection or symptoms.

Acinetobacter Treatment and ‘Superbug’ Antibiotic Resistance

The office considers Acinetobacter, together with A. baumannii, a heavy public health threat as a result of it’s usually immune to multiple antibiotics.

In fact, sixty-three % of Acinetobacter strains square measure multidrug-resistant, the office notes.

Before the Seventies, A. baumannii infections might be treated with a spread of various antibiotics, equivalent to aminoglycosides, β-lactams, and tetracyclines, consistent with a report within the journal Clinical biological science Reviews.

Today, however, some strains of A. baumannii square measure immune to most antibiotics, together with first-line antibiotics and carbapenems, that square measure usually used solely as a final resort.

Treating associate A. baumannii infection usually needs drug susceptibleness tests, that check for antibiotics that square measure still effective against the actual strain of microorganism.

In some cases, sulbactam and antibiotic antimicrobial medicine still work against A. baumannii once alternative antibiotics fail.


In patients with localized redness or redness related to an overseas body (eg, IV tube, suture), removal of the foreign body and native care is sometimes spare. inflammation once endotracheal cannulation could resolve with respiratory organ bathroom alone. Patients with a lot of intensive infections ought to be treated with antibiotics and with surgery if necessary.

Acinetobacter Baumannii has long had intrinsic resistance to several antimicrobials. MDR-AB are defined as strains that are resistant to classes of antimicrobials; some isolates are resistant to all. Before susceptibleness results square measure out there, attainable initial choices embody a carbapenem (eg, meropenem, imipenem, doripenem), colistin, or a fluoroquinolone and associate aminoglycoside, rifampin, or both. Sulbactam (a enzyme inhibitor) has intrinsic disinfectant activity against several MDR-AB strains. Tigecycline, a glycylcycline antibiotic, is additionally effective; but, borderline activity and emergence of resistance throughout medical aid are reportable. Minocin has in vitro activity.

Mild to moderate infections could answer monotherapy. Traumatic wound infections are often treated with Minocin. Serious infections square measure treated with combination therapy.