Resistant Infections (MRSA, ESBL, CRE, VRE)
Resistant infections occur when bacteria no longer respond to the usual antibiotics used to treat them. These infections can develop in the community or in healthcare settings, and they often require specialized treatment to ensure safe recovery. Common resistant organisms include:
- Methicillin-resistant Staphylococcus aureus (MRSA)
- Extended-spectrum beta-lactamase–producing organisms (ESBL)
- Carbapenem-resistant Enterobacterales (CRE)
- Vancomycin-resistant Enterococci (VRE)
At The Medical Group of New Jersey, our infectious disease specialists use advanced diagnostics and targeted antimicrobial therapy to manage resistant infections safely and effectively.
Symptom Onset & Initial Evaluation
Symptoms depend on the site of infection. Some resistant infections cause skin redness and swelling, while others may involve the lungs, bloodstream, or urinary tract.
Common symptoms include:
- Skin redness, warmth, or painful boils
- Fever or chills
- Persistent urinary symptoms (burning, frequency)
- Worsening cough or shortness of breath
- Fatigue or weakness
- Pus or drainage from a wound
- Pain or swelling at a surgical site
Resistant infections often appear when symptoms do not improve after initial antibiotic treatment, or when they worsen despite therapy. Early evaluation helps ensure that the correct treatment is started quickly.
Evaluation
During your visit, your specialist will:
- Review your symptoms and recent antibiotic use
- Ask about recent hospitalizations, surgeries, or catheter use
- Examine the infected area or assess organ-specific symptoms
- Evaluate for underlying conditions like diabetes or poor circulation
- Discuss infection-prevention strategies for your household
We focus on clear explanations and reassurance to help patients understand the steps involved in diagnosing and treating resistant infections.
Diagnosis & Risk Assessment
Identifying the exact organism and its resistance pattern is essential. Diagnosis often relies on laboratory testing that guides the choice of antibiotics.
Diagnostic testing may include:
- Wound cultures to identify resistant bacteria
- Blood cultures if fever or systemic symptoms are present
- Urine cultures for urinary tract infections
- Sputum cultures for pneumonia
- Nasal swabs for MRSA screening
- Imaging (X-ray, ultrasound, CT scan) if deeper infection is suspected
Risk assessment includes evaluating:
- Recent antibiotic exposure
- Chronic illnesses (diabetes, kidney disease, immune disorders)
- Recent hospital stays or long-term care facility residence
- Presence of catheters or medical devices
- History of prior resistant infections
These details help tailor treatment and reduce the chance of recurrence.
Treatment & Management
Treatment for resistant infections must be individualized based on the organism and the site of infection. The goal is to clear the infection while avoiding unnecessary antibiotic use.
Targeted Antibiotic Therapy
- Once culture results are available, your specialist may prescribe advanced IV antibiotics such as vancomycin, daptomycin, cefiderocol, or carbapenems (when appropriate)
- Oral antibiotics with known activity against the organism
- Combination therapy in severe or complex infections
Antibiotics are chosen carefully to minimize side effects and prevent future resistance.
Wound & Skin Infection Management
For resistant skin or soft-tissue infections:
- Incision and drainage of abscesses
- Wound dressings or packing
- Topical antiseptics when appropriate
- Close monitoring for signs of spreading infection
Device-Related Infection Care
If a catheter, joint prosthesis, or implanted device is infected:
- Removal or replacement may be required
- Long courses of antibiotics are often needed
- Your care will be coordinated with surgeons or procedural specialists
Infection Control Counseling
To reduce spread to others, your specialist may recommend:
- Hand hygiene and home cleaning strategies
- Covering wounds until healed
- Not sharing towels or razors
- Temporary isolation precautions in severe cases
We ensure patients and families feel supported, informed, and confident in preventing further spread.
Monitoring & Follow-Up
Resistant infections require close follow-up to ensure the infection resolves and to prevent recurrence.
Your infectious disease team at The Medical Group of New Jersey will:
- Review symptoms and examine the infection site
- Recheck cultures when needed
- Monitor kidney and liver function if on long-term antibiotics
- Adjust treatments based on response
- Assess for medication side effects
- Coordinate wound care or home health services
Many patients require several weeks of therapy, and follow-up helps ensure safe and complete recovery.
Prognosis & Preventive Care
Most resistant infections improve with appropriate treatment, but prevention remains key.
Preventive strategies include:
- Avoiding unnecessary antibiotics
- Completing antibiotic courses exactly as prescribed
- Keeping wounds clean and covered
- Practicing excellent hand hygiene
- Managing chronic health conditions
- Reporting new symptoms early
At The Medical Group of New Jersey, our infectious disease specialists work with patients long-term to reduce the risk of recurrent resistant infections and protect overall health.