Clinical Study
Antimicrobial Resistance – A Global Public Health Threat

HealthTrackRx • Originally published Mar. 21, 2021 | Updated Feb. 17, 2026
Antimicrobial Resistance Is Accelerating. Diagnostics Are the Way Forward.
Antimicrobial resistance, or AMR, remains one of the most serious global public health threats. The World Health Organization continues to rank AMR among the top ten threats to human health worldwide, driven largely by the overuse and misuse of antibiotics.
What has changed since this conversation first gained urgency is not the risk. It is the opportunity.
Today, advances in molecular diagnostics are reshaping how clinicians diagnose infection, prescribe treatment, and practice responsible antibiotic stewardship, particularly in urgent care and pediatric settings where speed and certainty matter most.
Antibiotic Use in America: The Scope of the Problem
Antibiotic exposure remains widespread across the U.S. population, often without diagnostic confirmation.
- 44 percent of Americans have been prescribed antibiotics two or more times in the past five years1
- 47 percent of Americans who have ever received antibiotics say their most recent prescription was given without any diagnostic testing1
These trends highlight a persistent reliance on empiric therapy, even as clinical guidelines increasingly emphasize targeted treatment.
The Root of the AMR Problem in Outpatient Care
Antibiotics are often prescribed before a pathogen is confirmed. This practice, known as empiric therapy, is common in outpatient environments where traditional testing methods take too long to influence real-time clinical decisions.
Up to 28 percent of outpatient antibiotics are prescribed unnecessarily, contributing directly to resistance, avoidable side effects, and rising healthcare costs.2
Clinicians are not ignoring guidelines. They are navigating practical constraints.
When diagnostic results arrive days later, the prescription has already been written, filled, and taken. In these scenarios, even the most well-intentioned providers lack the information needed to confidently withhold, narrow, or stop antibiotic therapy.
AMR, in many cases, is not a knowledge gap. It is a timing problem.
AMR Impacts by the Numbers
The downstream consequences of antimicrobial resistance are already measurable.
- 2.8 million antimicrobial-resistant infections occur in the U.S. each year3
- More than 35,000 Americans die annually from drug-resistant infections3
- 1 in 5 medication-related emergency room visits is due to antibiotic side effects4
- $4.6 billion annually is spent treating infections caused by resistant organisms in the U.S.5
Looking ahead, the projections are even more concerning.
- By 2050, deaths from drug-resistant infections are expected to increase by 70 percent6
- This could result in up to 40 million deaths globally each year6
- An estimated 2 million deaths annually in the U.S. alone6
These are not abstract forecasts. They reflect the cumulative impact of delayed diagnosis and unnecessary antibiotic exposure over time.
Why Speed to Results Changes Prescribing Behavior
Modern molecular diagnostics have shifted what is possible.
Next-morning results allow providers to move from suspicion to certainty quickly enough to:
- Differentiate viral from bacterial infections
- De-escalate unnecessary antibiotic use
- Select targeted therapies when treatment is appropriate
- Reinforce guideline-aligned decision-making
Among urgent care providers using HealthTrack diagnostics 87 percent reported improved diagnostic accuracy or reduced antibiotic prescribing.7
“When clinicians have actionable diagnostic results quickly, prescribing behavior changes. Diagnostics give providers the confidence to treat precisely rather than broadly.” Jay Reddy, PhD, Chief Science Officer, HealthTrack
This confidence is critical in outpatient care, where follow-up decisions often hinge on whether results arrive in time to matter.
HealthTrack’s Role in Advancing Antibiotic Stewardship
HealthTrack’s diagnostic model was built around one core principle: results must arrive fast enough to change care.
Through streamlined, syndromic molecular panels aligned to seasonality and clinical guidelines, HealthTrack supports:
- Next-morning turnaround times
- Menus designed specifically for urgent care and pediatrics
- Actionable insights that inform real treatment decisions
Rather than broad, one-size-fits-all testing, HealthTrack focuses on targeted diagnostics that answer the most clinically relevant questions first.
This approach reduces unnecessary antibiotic exposure while supporting faster, more confident care.
The Clinical Stakes Are Real and Immediate
Antimicrobial resistance is not a future concern. It is already influencing patient outcomes, healthcare costs, and community health.
“AMR is not an abstract concept. It is the direct result of how quickly and accurately we diagnose infection. Speed to the right answer protects patients today and preserves antibiotics for the future.” Steven Goldberg, MD, MBA, Chief Medical Officer, HealthTrack
Every delayed or unclear diagnosis increases the likelihood of broad-spectrum prescribing. Every timely, accurate result creates an opportunity for better stewardship.
How the Conversation Has Evolved Since 2021
In 2021, AMR discussions centered on awareness and warning.
Today, the focus is on execution.
- Diagnostics are faster
- Testing menus are more precise
- Clinical guidelines emphasize targeted therapy
- Providers expect results that inform care, not just confirm it later
HealthTrack has evolved alongside this shift, moving from broad testing approaches to focused, guideline-aligned diagnostics designed for real-world outpatient workflows.
The Path Forward
Antimicrobial resistance cannot be solved by prescribing less alone.
It is solved by knowing more, sooner.
When clinicians have fast, reliable diagnostic answers, they can act decisively, treat appropriately, and protect the effectiveness of antibiotics for the patients who truly need them.
Diagnostics are no longer a supporting tool in the fight against AMR. They are the foundation.
References
- HealthTrackRx. (2025). Respiratory Season Trends: Symptoms and Care. HealthTrackRx.
- Hersh AL, King LM, Shapiro DJ, Hicks LA, Fleming-Dutra KE. Unnecessary Antibiotic Prescribing in US Ambulatory Care Settings, 2010-2015. Clinical Infectious Diseases. 2021;72(1):133-137.
- Shehab N, Lovegrove MC, Geller AI, et al. US emergency department visits for outpatient adverse drug events, 2013–2014. JAMA. 2016;316(20):2115-2125.
- Centers for Disease Control and Prevention. (2025). Antimicrobial resistance: Causes and how it spreads.
- Nelson, R. E., Hatfield, K. M., Wolford, H., et al. (2021). National estimates of healthcare costs associated with multidrug-resistant bacterial infections among hospitalized patients in the United States. Clinical Infectious Diseases, 72(Suppl 1), S17-S26.
- Nature. 40 million deaths by 2050: Toll of drug-resistant infections to rise by 70%.
- HealthTrackRx. (2025). HealthTrackRx Drives Better Patient Outcomes & Satisfaction. HealthTrackRx.
References
- HealthTrackRx. (2025). Respiratory Season Trends: Symptoms and Care. HealthTrackRx.
- Hersh AL, King LM, Shapiro DJ, Hicks LA, Fleming-Dutra KE. Unnecessary Antibiotic Prescribing in US Ambulatory Care Settings, 2010-2015. Clinical Infectious Diseases. 2021;72(1):133-137.
- Shehab N, Lovegrove MC, Geller AI, et al. US emergency department visits for outpatient adverse drug events, 2013–2014. JAMA. 2016;316(20):2115-2125.
- Centers for Disease Control and Prevention. (2025). Antimicrobial resistance: Causes and how it spreads.
- Nelson, R. E., Hatfield, K. M., Wolford, H., et al. (2021). National estimates of healthcare costs associated with multidrug-resistant bacterial infections among hospitalized patients in the United States. Clinical Infectious Diseases, 72(Suppl 1), S17-S26.
- Nature. 40 million deaths by 2050: Toll of drug-resistant infections to rise by 70%.
- HealthTrackRx. (2025). HealthTrackRx Drives Better Patient Outcomes & Satisfaction. HealthTrackRx.
Related Articles and White papers

HealthTrackRx • Originally published Mar. 21, 2021 | Updated Feb. 17, 2026
Antimicrobial Resistance Is Accelerating. Diagnostics Are the Way Forward.
Antimicrobial resistance, or AMR, remains one of the most serious global public health threats. The World Health Organization continues to rank AMR among the top ten threats to human health worldwide, driven largely by the overuse and misuse of antibiotics.
What has changed since this conversation first gained urgency is not the risk. It is the opportunity.
Today, advances in molecular diagnostics are reshaping how clinicians diagnose infection, prescribe treatment, and practice responsible antibiotic stewardship, particularly in urgent care and pediatric settings where speed and certainty matter most.
Antibiotic Use in America: The Scope of the Problem
Antibiotic exposure remains widespread across the U.S. population, often without diagnostic confirmation.
- 44 percent of Americans have been prescribed antibiotics two or more times in the past five years1
- 47 percent of Americans who have ever received antibiotics say their most recent prescription was given without any diagnostic testing1
These trends highlight a persistent reliance on empiric therapy, even as clinical guidelines increasingly emphasize targeted treatment.
The Root of the AMR Problem in Outpatient Care
Antibiotics are often prescribed before a pathogen is confirmed. This practice, known as empiric therapy, is common in outpatient environments where traditional testing methods take too long to influence real-time clinical decisions.
Up to 28 percent of outpatient antibiotics are prescribed unnecessarily, contributing directly to resistance, avoidable side effects, and rising healthcare costs.2
Clinicians are not ignoring guidelines. They are navigating practical constraints.
When diagnostic results arrive days later, the prescription has already been written, filled, and taken. In these scenarios, even the most well-intentioned providers lack the information needed to confidently withhold, narrow, or stop antibiotic therapy.
AMR, in many cases, is not a knowledge gap. It is a timing problem.
AMR Impacts by the Numbers
The downstream consequences of antimicrobial resistance are already measurable.
- 2.8 million antimicrobial-resistant infections occur in the U.S. each year3
- More than 35,000 Americans die annually from drug-resistant infections3
- 1 in 5 medication-related emergency room visits is due to antibiotic side effects4
- $4.6 billion annually is spent treating infections caused by resistant organisms in the U.S.5
Looking ahead, the projections are even more concerning.
- By 2050, deaths from drug-resistant infections are expected to increase by 70 percent6
- This could result in up to 40 million deaths globally each year6
- An estimated 2 million deaths annually in the U.S. alone6
These are not abstract forecasts. They reflect the cumulative impact of delayed diagnosis and unnecessary antibiotic exposure over time.
Why Speed to Results Changes Prescribing Behavior
Modern molecular diagnostics have shifted what is possible.
Next-morning results allow providers to move from suspicion to certainty quickly enough to:
- Differentiate viral from bacterial infections
- De-escalate unnecessary antibiotic use
- Select targeted therapies when treatment is appropriate
- Reinforce guideline-aligned decision-making
Among urgent care providers using HealthTrack diagnostics 87 percent reported improved diagnostic accuracy or reduced antibiotic prescribing.7
“When clinicians have actionable diagnostic results quickly, prescribing behavior changes. Diagnostics give providers the confidence to treat precisely rather than broadly.” Jay Reddy, PhD, Chief Science Officer, HealthTrack
This confidence is critical in outpatient care, where follow-up decisions often hinge on whether results arrive in time to matter.
HealthTrack’s Role in Advancing Antibiotic Stewardship
HealthTrack’s diagnostic model was built around one core principle: results must arrive fast enough to change care.
Through streamlined, syndromic molecular panels aligned to seasonality and clinical guidelines, HealthTrack supports:
- Next-morning turnaround times
- Menus designed specifically for urgent care and pediatrics
- Actionable insights that inform real treatment decisions
Rather than broad, one-size-fits-all testing, HealthTrack focuses on targeted diagnostics that answer the most clinically relevant questions first.
This approach reduces unnecessary antibiotic exposure while supporting faster, more confident care.
The Clinical Stakes Are Real and Immediate
Antimicrobial resistance is not a future concern. It is already influencing patient outcomes, healthcare costs, and community health.
“AMR is not an abstract concept. It is the direct result of how quickly and accurately we diagnose infection. Speed to the right answer protects patients today and preserves antibiotics for the future.” Steven Goldberg, MD, MBA, Chief Medical Officer, HealthTrack
Every delayed or unclear diagnosis increases the likelihood of broad-spectrum prescribing. Every timely, accurate result creates an opportunity for better stewardship.
How the Conversation Has Evolved Since 2021
In 2021, AMR discussions centered on awareness and warning.
Today, the focus is on execution.
- Diagnostics are faster
- Testing menus are more precise
- Clinical guidelines emphasize targeted therapy
- Providers expect results that inform care, not just confirm it later
HealthTrack has evolved alongside this shift, moving from broad testing approaches to focused, guideline-aligned diagnostics designed for real-world outpatient workflows.
The Path Forward
Antimicrobial resistance cannot be solved by prescribing less alone.
It is solved by knowing more, sooner.
When clinicians have fast, reliable diagnostic answers, they can act decisively, treat appropriately, and protect the effectiveness of antibiotics for the patients who truly need them.
Diagnostics are no longer a supporting tool in the fight against AMR. They are the foundation.
References
- HealthTrackRx. (2025). Respiratory Season Trends: Symptoms and Care. HealthTrackRx.
- Hersh AL, King LM, Shapiro DJ, Hicks LA, Fleming-Dutra KE. Unnecessary Antibiotic Prescribing in US Ambulatory Care Settings, 2010-2015. Clinical Infectious Diseases. 2021;72(1):133-137.
- Shehab N, Lovegrove MC, Geller AI, et al. US emergency department visits for outpatient adverse drug events, 2013–2014. JAMA. 2016;316(20):2115-2125.
- Centers for Disease Control and Prevention. (2025). Antimicrobial resistance: Causes and how it spreads.
- Nelson, R. E., Hatfield, K. M., Wolford, H., et al. (2021). National estimates of healthcare costs associated with multidrug-resistant bacterial infections among hospitalized patients in the United States. Clinical Infectious Diseases, 72(Suppl 1), S17-S26.
- Nature. 40 million deaths by 2050: Toll of drug-resistant infections to rise by 70%.
- HealthTrackRx. (2025). HealthTrackRx Drives Better Patient Outcomes & Satisfaction. HealthTrackRx.
References
- HealthTrackRx. (2025). Respiratory Season Trends: Symptoms and Care. HealthTrackRx.
- Hersh AL, King LM, Shapiro DJ, Hicks LA, Fleming-Dutra KE. Unnecessary Antibiotic Prescribing in US Ambulatory Care Settings, 2010-2015. Clinical Infectious Diseases. 2021;72(1):133-137.
- Shehab N, Lovegrove MC, Geller AI, et al. US emergency department visits for outpatient adverse drug events, 2013–2014. JAMA. 2016;316(20):2115-2125.
- Centers for Disease Control and Prevention. (2025). Antimicrobial resistance: Causes and how it spreads.
- Nelson, R. E., Hatfield, K. M., Wolford, H., et al. (2021). National estimates of healthcare costs associated with multidrug-resistant bacterial infections among hospitalized patients in the United States. Clinical Infectious Diseases, 72(Suppl 1), S17-S26.
- Nature. 40 million deaths by 2050: Toll of drug-resistant infections to rise by 70%.
- HealthTrackRx. (2025). HealthTrackRx Drives Better Patient Outcomes & Satisfaction. HealthTrackRx.