Infectious Disease Specialists

The physicians at Infectious Diseases Associates, P.C. offer infectious disease consultations and a broad range of treatments and therapies, such as Fecal Microbiota Transplantation,  Diagnosis and Treatment of Sexually Transmitted Diseases, Diagnosis and Treatment of HIV, Treatment of AIDS, Hepatitis, Lyme Disease, as well as, other Tick-borne Diseases, Tuberculosis, Management of HIV pre-exposure prophylaxis (PrEP) and post-exposure prophylaxis (PEP).

Our office utilizes T-Spot for tuberculosis testing of all immuno-compromised patients.

Patients suspected of having Lyme Disease may have a Panel of tests performed for a variety of tick-borne diseases common to the Northeastern United States.

Our doctors perform screening for the following diseases: HIV, HPV, Hepatitis A, B & C, Tuberculosis, Lyme and other Tick-borne diseases, Syphilis, Gonorrhea, Chlamydia and Anal Cancer.

Schedule an appointment for Rapid HIV testing and counseling. This test takes only 15 minutes! Knowledge is power. One is eight people are HIV positive and do not know that they are positive.

The new vaccination for Herpes Zoster or Shingles, Shingrix, is now available at Infectious Diseases Associates, P.C. The Centers for Disease Control is recommending this vaccine for those individuals who are over the age of 50.

Infectious Disease Specialists in Bucks, Philadelphia & Montgomery Counties

The physicians at Infectious Diseases Associates, P.C. are on staff at the following hospitals and institutions:  Holy Redeemer Hospital, Jeanes Hospital, Jefferson Bucks,  Jefferson Frankford, Jefferson Torresdale, Kindred Northeast Philadelphia, Kindred South Philadelphia, Lower Bucks Hospital, Moss Rehabilitation at Jefferson Bucks, Moss Rehabilitation at Jefferson Frankford, Nazareth Hospital, St. Mary Medical Center, St. Mary Rehabilitation Hospital, Deer Meadows Retirement Center, St. Joseph's Manor, Lafayette Redeemer and The Wound Care Centers at Jefferson Bucks and Jefferson Frankford.

Grand Opening of Our Travel Medicine & Vaccination Clinic

Dr. Lindsay R. Jablonski has opened a Travel Medicine & Vaccination Clinic at our office. She has years of experience and is very excited about this new venture!

Call to schedule a consultation to get the proper vaccinations and advice so that the only souvenirs you bring home are things you will treasure and bring back happy memories, rather than Traveler's diarrhea or a disease! However, our Travel Medicine & Vaccination Clinic will also be available to those who develop travel related illnesses and issues.


Follow our new  page dedicated to Travel, complete with Travel Alerts, Helpful Information and descriptions of new and exciting places to travel.



Lyme Disease and other Tick-borne Diseases

 If you suspect that you may have Lyme Disease or some other Tick-borne disease, call our office for an appointment to be tested! We will schedule you to have your blood drawn, with test results back in 24- 48 hours.

There are over 300,000 people diagnosed with Lyme Disease every year. However, we can also test for other tick-borne diseases which are common in this area. Many of the symptoms are very similar!

Fecal Microbiota Transplantation for Clostridium difficile

Infectious Diseases Associates, P.C. "Clostridium difficile" infection of the colon may cause colitis (bowel inflammation), fever, and/or diarrhea.  "Fecal Microbiota Transplantation", offers an alternative therapy to patients who have suffered recurrent infection despite receiving standard oral antibiotic therapy. Many studies, have shown a high cure rate with low relapse rate.¹
FMT is a procedure whereby stool (fecal bacteria) is donated from a healthy individual and instilled into the patient. This process restores the colonic microflora by using healthy bacterial flora to replace or "crowd out" the harmful Clostridium difficile bacterium.

Call and schedule an appointment with Dr. Donald K. Marcus.
1.         Burke KE, Lamont JT (August 2013). "Fecal Transplantation for Recurrent Clostridium difficile Infection in Older Adults: A Review.”. Journal of the American Geriatrics Society 61 (8): 1394–8.


Information for Patients having FMT:

Treatment of STD's (Sexually Transmitted Diseases)

Dr. Divya Sareen is now conducting a STD (Sexually Transmitted Diseases) Clinic on Thursday mornings. Some of the Bacteria, Fungus and Parasites that may be transmitted are HIV, Herpes Simplex Virus (HSV), Human Papilloma Virus (HPV), Chlamydia, Syphilis, Gonorrhea, Candida, Viral Hepatitis, and Trichomonas.

(CDC)  There were more than 2 million new cases of Syphilis, Gonorrhea and Chlamydia diagnosed in the US in 2016. Since only these three STD's and HIV are required to be reported to the CDC, it is estimated that when herpes and the dozens of other sexually transmitted diseases are included, there are more than 20 million new cases of STD's every year, with at least half occurring between the ages of 15-24.

(CDC)  Human Papilloma Virus is the most common STD in the United States. It is estimated that there are 79 million Americans (in their late teens and early 20's) infected with HPV.