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Dr. John Leander Po

Infectious Disease
Tucson, AZ
19 years experience male

Locations

Petersen Clinics

Tucson, AZ

Address

1501 N. Campbell Ave., 6th floor Ambulatory clinics, Tucson, AZ, US
Directions

My office hours

Tuesday: Closed
Show more

Fax

(520) 626-5183

Insurances accepted

UnitedHealthcare

Arizona Health Care Cost Containment System (AHCCCS)

Blue Cross Blue Shield Of Arizona

Humana Insurance Company

Tricare

Aetna Life Insurance Company

Carefirst Inc

Health Net of Arizona

About

Bio

Dr. John Leander Po is originally from Toronto, Ontario Canada. After completing his BSc and MSc from McGill University in Montreal, he received both M.D. and Ph.D degrees at Drexel University College of Medicine in Philadelphia, He finished Internship and residency in internal medicine at Boston University Medical Center and continued on with the subspecialty of infectious diseases (ID) in the same institution, with additional training in transplant ID at the Massachusetts General Hospital. Dr. Po was mentored by Dr. Philip C. Carling, who conducted seminal work on antimicrobial stewardship and the role of the environment in healthcare acquired infections. Dr. Po moved to Phoenix, AZ in 2008 serving as an community ID consultant and an assistant professor at the University of Arizona College of Medicine before moving to his current position as a clinical associate professor of medicine and the ID Fellowship Program Director at the University of Arizona College of Medicine - Tucson.

Specialties
Doctors may have more than one area of specialty interest. Board certification in a specialty area means the doctor has completed formal training and has practice experience in that specialty, and has passed the certification examination from the corresponding accredited medical specialty board.

Infectious Disease

Licenses

United States: Arizona

Doctor Q&A

919 Answers
747 Agrees
The number of answers this doctor has agreed with.
A 23-year-old male asked:
Dr. John Leander Po
Infectious Disease 19 years experience
See a doc today: "a huge knot above the belly button" along with symptoms of nausea and sleeplessness is concerning for a hernia that cannot be pushed back into place... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 46-year-old member asked:
Dr. John Leander Po
Infectious Disease 19 years experience
It can cause it.: Doxycycline in a broad spectrum antibiotic that not only stops bad bacteria, but also the good ones that maintain an environment that is hostile to ye... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 40-year-old member asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Depends on what?: For a uti, it should work within a day; igf everything else (eg. Cellulitis, bacterial sinusitis), your symptoms may flare and become worse for a day ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 39-year-old female asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Symptomatic?: It's great you are cautious about the antibiotic. However, if you do not have diarrhea before taking the cipro, (ciprofloxacin) it will not be useful-... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 44-year-old male asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Context!: In many cases, yes- but it depends on the situation. If one was to have a single positive blood culture set out of 2 or 3 sets, and the patient is fe... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A male asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Need to see a doctor: That's an excellent question. There are many factors that go into determining whether or not you're candidate for the newer treatments for hcv- the "g... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 49-year-old member asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Yes you can: There are many, many different types of stomach viruses that we know of and others that have yet to be discovered. Just be careful and wash your hands... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 27-year-old female asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Highly not advised!: If what you have is not herpes, then you are ok.However, if you think it's herpes, watch out!the topical you are using has an antifungal agent and a s... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 47-year-old member asked:
Dr. John Leander Po
Infectious Disease 19 years experience
We have a cure: "The plague" refers to the bubonic plague, caused by The bacteria, Yersinia pestis. Early diagnosis is key to effective therapy. This bacteria can b... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 24-year-old female asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Check other viruses: Other viruses can be transmitted during intimacy such as cytomegalovirus (cmv), epstein barr virus (ebv), and hepatitis b or. Hepatitis c viruses. The... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 47-year-old member asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Several methods: 1. Selsun lotion 2. Antifungal agent taken by mouth ( e.g. Ketoconazole) #1 takes a week or more , bathing with the lotion that should be left on t... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 23-year-old male asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Right dose: Assuming you are being treated for a mild to moderate c diff infection, 125mg liquid dosing is indicated. Higher doses are used in patients with more ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 21-year-old female asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Cause not addressed: See your doctor - if an antibiotic doesn't relieve your pain within 24 hours, it may be due to the bacteria being resistant to it and another ant... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A member asked:
Dr. John Leander Po
Infectious Disease 19 years experience
No- try this...: Resolution of ulcers is slowed by a heavy bacterial burden in the mouth.Apart from a salt water gargle, one can also gargle listerine 60 sec , twice a... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 44-year-old member asked:
Dr. John Leander Po
Infectious Disease 19 years experience
At your own peril...: Like trimethoprim-sulfamethoxazole , Metronidazole and alcohol can cause a Disulfiram -like reaction similar the drug, Antabuse (disulfiram) - resulti... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 37-year-old member asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Healthcare acquired : Other than an ascending UTI from feces, instrumentation with less that optimally sterilized equipment or poor aseptic techniques of catheter insertion... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 53-year-old female asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Wash hands...: Since most are caused by viruses, several preventative steps can be done to help reduce these infections: 1. Wash hand frequently. 2. Avoid being in... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 28-year-old male asked:
Dr. John Leander Po
Infectious Disease 19 years experience
No: If by stds, you mean gonorrhea, chlamydia, syphilis, trichomonas, hiv, hsv-2, and others, Clindamycin won't clear these types of infections up.
Created for people with ongoing healthcare needs but benefits everyone.
A 31-year-old male asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Should've improved..: Pain from a uti, when the right antibiotic is used, will improve within a day. Since it hasn't, don't suffer - call your doctor immediately and get r... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A male asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Diid you mean ....: i think you are asking "How is HIV awareness maintained in the US?" If so, that is a great question- The answer is simple. It's through the motivati... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 26-year-old female asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Go to ED immediately: The high fever and shortness of breath with cough can quickly lead to something much more serious. The high fever alone will potentially lead to seiz... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 29-year-old male asked:
Dr. John Leander Po
Infectious Disease 19 years experience
IImpossible: Keeping things dry in the presence of foreskin is virtually impossible since urine will also pool in the space between the glans penis and the foreski... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 34-year-old member asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Weeks after primary : Though the primary infection, typically viral in nature, can last a few days, the damage from it can result in bronchospasm to mild stimuli such as ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 54-year-old female asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Yes: Abnormal blood glucose levels can be the equivalent to a "dead canary in a mineshaft"- very high or low b/g levels can preceed the symptoms of an infe... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 33-year-old female asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Yeast infection: Most common scenario for a vaginal yeast infection, is the one you just described. Whitish discharge with other symptoms such as itching, shortly foll... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A member asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Urinate after sex...: I've had success with a patient with post -coital uti's by recommending urination immediately after sex. Because of the"churning" that occurs during ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 36-year-old male asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Don't: Don't brush your teeth immediately before sexual activity (use mouth wash).
Created for people with ongoing healthcare needs but benefits everyone.
A 36-year-old male asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Ignore: Avoid sharing combs and brushes with others since it can potentially spread infection such as mrsa.
Created for people with ongoing healthcare needs but benefits everyone.
A 66-year-old female asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Hand hygiene?: Either a different type of GI infection is sweeping through the house, or else, there is a recurrent infection that may be due less the optimal hand h... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 51-year-old female asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Like tetracycline...: Doxycycline in a broad spectrum antibiotic has a wide range of indications. Unlike tetracycline, it is more foregiving when it comes to milk ( it does... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 27-year-old female asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Seek care: Seeing patients with vomiting and diarrhea, they are typically quite dehydrated and need help getting their salts and fluids replenished. I recommend ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 30-year-old female asked:
Dr. John Leander Po
Infectious Disease 19 years experience
YES it can: Increased glucose in the blood/urine in a diabetic can represent a 'stress response', and may serve as the 'canary in the mine' when it comes to infec... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 58-year-old female asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Use face mask: If you can't breathe easily with nasal pillows, stopping CPAP will likely make you life more miserable because you are now dealing with not just ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 25-year-old male asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Evolutn advantage!: Aside: that same question can be asked for men...Anyhow, since pregnancy and childbearing is quite painful at times and energy consuming, people that... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 28-year-old male asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Antibiotic: It is an antibiotic that is part or the macrolid e family- this other drugs in this family includes Erythromycin ANS azithromycin.
Created for people with ongoing healthcare needs but benefits everyone.
A member asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Get it drained!: Typically a boil if large enough, will not get any better with any antibiotic- the antibiotic cannot infiltrate into the purulent fluid to kill bacter... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A female asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Depends on test-: The HIV test is broken into two parts- the screen and the confirmatory western blot. When infected with HIV for the first time (primary HIV infection)... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 22-year-old female asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Re-evaluate/ refer: The initial diagnosis needs to be reassessed- tell your doctor of your persistent symptoms so that they can either re-evaluate the diagnosis or else,... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A member asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Please don't...: Out-patient management of diverticulitis will typically involve antibiotics by mouth that will cover gut bacteria that can grow in the presence or abs... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 33-year-old female asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Not in your scenario: Though certain bacteria can be susceptible to azithromycin, in your case it is not. Symptoms of a uti, when treated with the appropriate antibiotic, ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A member asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Non - risk : As a person who draws blood, you will be following your institution's policies on infection prevention and observe universal precautions while perform... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 19-year-old male asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Concern justified: I would be concerned like you are if you have to go to the bathroom 20 times a night and straining. A month of cipro (ciprofloxacin) won't cut it. ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 23-year-old female asked:
Dr. John Leander Po
Infectious Disease 19 years experience
A false neg test!: Sometimes, the test kit is inaccurate, despite a "duck looking, squawking and smelling like a duck". Testing for the flu using "rapid" methods, can b... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 33-year-old male asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Get it seen by a doc: The problem in this scenario, is that without seeing what is going on with your waist, the process can be either a bite reaction (did you see the mosq... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 56-year-old male asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Call exterminator: The question you posed is complicated- individually, it's easy to squish a bedbug-but from a perspective of eliminating them from your house, it requi... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 33-year-old female asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Get it evaluated: Though antibiotics aren't needed for respiratory viral infections, a sore throat may need immediate antibiotic therapy for streptococcal infections ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 28-year-old male asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Not unusual thing...: The throat contains a cornucopia of different bacteria and yeast- this is not considered unusual and should not be treated with an antifungal agent.
Created for people with ongoing healthcare needs but benefits everyone.
A 26-year-old female asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Typically, yes-: There is likely a detail missing in this case that you and i aren't aware over- consider asking the prescribing doctor why can't the abscess be draine... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 25-year-old female asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Diffiicult situation: First, i would like to say that my heart goes out to you - many people incliding myself , have been sick over the past few weeks. The pain in your for... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 37-year-old female asked:
Dr. John Leander Po
Infectious Disease 19 years experience
Have you fed him?: There is likely more information needed to answer your question fully- but on first impression, if your son hasn't eaten anything because of a sore th... Read More
Created for people with ongoing healthcare needs but benefits everyone.

Testimonials
Recommendations and Thank you notes are endorsements given from patients or other doctors.

30
Recommendations
1.2K
Thank you notes
Nov 5, 2014
I have reviewed many of Dr. Po's answers and consultations. He is extremely knowledgeable about Infectious Diseases and general medicine. His consultations typically involve very complicated issues an...Read More
Sep 19, 2014
Dr. Po is not only highly knowledgeable in Infectious Diseases and Internal Medicine, but his answers are always accurate, stated succinctly and understandably, and he has empathy and obviously cares ...Read More
Jul 20, 2014
I fully recommend Dr. John Leander Po to anyone needing his help as he seems to care deeply about his field of Infectious Disease. Great Physician and Colleague and asset to the community at HealthTap...Read More
HealthTap member
I like your answer. My doctor told me I was crazy because I decided to break a relationship after finding my partner was HSV-1 positive. I am 49 years old and she was 30. I have no HSV infections or S...Read More
HealthTap member
This was very helpful. Thanks! I have shingles along my ulner nerve area of my left arm. Third time having them and I can't understand why.its just Comforting 2 read about it. Thank you
HealthTap member
This was very helpful. Thanks! Thank you! Very helpful to know it's not necessarily a sinus infection ( i have a standardized exam in a few days), I will get some decongestants :)

Education & Training

Medical/Graduate school

Drexel University College of Medicine, PA
Graduated 2003MD

Medical/Graduate school

Drexel University College of Medicine, PA
Graduated 2001MD

Residency

BOSTON MEDICAL CENTER CORPORATION
Completed 2006

Residency

Boston University Medical Center
Completed 2006

Awards

2011, 2012, 2013, 2014 HealthGrades• Patient Choice Award
2011, 2012, 2013 HealthGrades• Patient Compassion Award
Most Influential, First Place, Phoenix, AZ - Winter
2013

Affiliations

Past President, Arizona Infectious Diseases Society (ARIDS)
Infectious Disease Society of America (IDSA)
Society for Healthcare Epidemiology of America (SHEA)
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