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Infectious Disease Care at The Medical Group of New Jersey

Comprehensive Evaluation, Advanced Treatment, and Ongoing Support
Infections can range from mild to life-threatening, and many require specialized care to ensure safe recovery and prevent complications. At The Medical Group of New Jersey, our board-certified infectious disease specialists diagnose and treat a wide range of complex infections, including viral illnesses, antibiotic-resistant bacteria, bloodstream infections, and travel-related diseases.Our team takes a patient-centered, evidence-based approach, combining advanced diagnostics with personalized treatment plans. Whether you need support for a new infection or long-term management of a chronic condition, we are committed to providing compassionate, coordinated care every step of the way.

Why Choose The Medical Group of New Jersey for Infectious Diseases

  • Board-Certified Infectious Disease Specialists: Expertise in complex and emerging infections.
  • Advanced Diagnostics On-Site: Including viral PCR tests, imaging, and laboratory testing.
  • Evidence-Based Treatments: Including targeted antibiotics, antivirals, and immunotherapies.
  • Specialized Care for Resistant Infections: Such as MRSA, ESBL, VRE, and CRE.
  • Comprehensive Chronic Illness Management: Including HIV and hepatitis.
  • Travel Medicine and Tropical Disease Expertise: For returning travelers and pre-travel counseling.
  • Coordinated Care: With primary care, pulmonology, cardiology, nephrology, and hospital teams.
  • Compassionate, Patient-Centered Approach: For both urgent and long-term infection management.

Top Conditions Treated in Infectious Disease

Below are the most common infectious conditions managed by our infectious disease specialists. Each links to a detailed clinical patient journey that explains symptoms, diagnosis, treatment, and follow-up in an easy-to-understand format.

HIV/AIDS
A chronic viral infection that may begin with flu-like symptoms and progress silently. Diagnosed using HIV testing and managed with lifelong antiretroviral therapy to keep the virus suppressed and protect the immune system.

Tuberculosis (TB)
A bacterial lung infection that causes chronic cough, weight loss, and night sweats. TB is diagnosed with TB blood tests, imaging, and sputum studies. Treated with multi-drug therapy over several months.

Pneumonia (Community- and Hospital-Acquired)
A lung infection causing fever, cough, and shortness of breath. Diagnosed with chest X-ray and cultures. Treatment depends on the cause and may include antibiotics, antivirals, or supportive therapy.

COVID-19 & Viral Respiratory Infections
Viral illnesses such as COVID-19, influenza, and RSV can range from mild to severe. Diagnosed with PCR or antigen tests and managed with supportive care, antivirals, or advanced respiratory support if needed.

Sepsis & Bloodstream Infections
A life-threatening response to infection that requires urgent evaluation and treatment. Diagnosed with blood cultures and organ function tests, then treated with IV fluids, antibiotics, and supportive care.

Endocarditis (Heart Valve Infection)
A serious infection of the heart valves causing fever, fatigue, and murmurs. Diagnosed with blood cultures and echocardiography. Requires IV antibiotics and sometimes surgery.

Osteomyelitis (Bone Infection)
A painful bone infection that is often linked to wounds or diabetes. Diagnosed with MRI and bone biopsy. Treated with prolonged antibiotics and, in some cases, surgical debridement.

Antibiotic-Resistant Infections (MRSA, ESBL, CRE)
Infections that do not respond to standard antibiotics. Diagnosed with cultures and sensitivity testing. Managed with advanced antibiotics and infection-control strategies.

Infectious Hepatitis (A, B, C)
Liver inflammation causing jaundice and fatigue. Diagnosed with virus-specific blood tests. Treatment ranges from supportive care (Hep A) to highly effective antiviral therapy (Hep B & C).

Tropical Diseases & Travel-Related Infections
Conditions such as malaria, dengue, typhoid, and traveler’s diarrhea. Diagnosed with specialized testing based on travel history. Treated with antimalarials, antivirals, or antibiotics.


Our Approach to Care

  • Accurate and timely diagnosis: PCR testing, serologies, cultures, imaging
  • Evidence-based treatment: Targeted antibiotics, antivirals, antifungals, and supportive therapy
  • Coordinated specialty care: Collaboration with pulmonology, cardiology, hepatology, wound care, and primary care
  • Long-term monitoring: Follow-up visits to ensure recovery and prevent recurrence
  • Prevention-focused support: Vaccinations, infection-prevention counseling, and travel medicine

Practicing Providers

View Gabriel Karkenny, MD Profile

Gabriel Karkenny, MD

975 Clifton Ave,Suite #1Clifton, NJ 07013(973) 778-8666 Visit Profile
View Sabah Varoqua, MD Profile

Sabah Varoqua, MD

975 Clifton Ave,Suite #1Clifton, NJ 07013(973) 778-8666 Visit Profile
View Sessine Najjar, MD Profile

Sessine Najjar, MD

975 Clifton Ave,Suite #1Clifton, NJ 07013(973) 778-8666 Visit Profile
View Joe E. Najjar, MD Profile

Joe E. Najjar, MD

975 Clifton Ave,Suite #1Clifton, NJ 07013(973) 778-8666 Visit Profile