Physician Knowledge, Attitudes, and Practices Regarding Viral Exanthem Diagnosis And Mandatory Reporting Requirements in Major Metropolitan Regions of Florida, USA

A cross-sectional survey of 146 physicians in Florida reveals that while overall knowledge of viral exanthem diagnosis and reporting is high, significant gaps persist—particularly among family physicians compared to pediatricians—highlighting the need for enhanced education to improve diagnostic accuracy and public health reporting as vaccine-preventable outbreaks rise.

The Gist

Imagine Florida is a giant, bustling city where doctors are the firefighters. Their job isn't just to put out fires (sick patients); they also need to know exactly what is burning so they can call the right authorities to prevent the whole neighborhood from catching fire.

The "fires" in this story are viral rashes (like measles, rubella, and roseola). These used to be rare because everyone had vaccines (like having sprinkler systems in every house). But lately, fewer people are getting vaccinated, and the "fires" are starting to spark up again.

Here is what this study did, explained simply:

1. The Big Question: "Do the Firefighters Know the Difference?"

The researchers (a team from Nova Southeastern University) wanted to know: If a doctor sees a child with a red, itchy rash, can they tell if it's Measles, Rubella, or just Roseola?

Why does this matter?

• Measles is like a wildfire: It spreads super fast and is dangerous. Doctors must call the health department immediately (mandatory reporting).
• Roseola is like a small campfire: It's annoying but usually goes away on its own and doesn't require a big emergency call.
• Rubella is tricky: It looks a bit like the others but can cause serious problems for pregnant women.

If a doctor mistakes a wildfire (Measles) for a campfire (Roseola), they won't call for help, and the fire could spread to the whole town.

2. The Experiment: A "Pop Quiz" for Doctors

The team sent a 19-question pop quiz to 162 doctors across Florida. The quiz had three parts:

• The Knowledge Test: "Here is a story about a kid with a fever and a rash. What is it?"
• The Rules Test: "Do you know when you are legally required to call the health department?"
• The Confidence Check: "How sure are you that you can spot these rashes?"

3. The Results: The "Good, The Bad, and The Surprising"

Out of the 162 doctors, 146 finished the quiz. Here is what they found:

• The Pediatricians (Kids' Doctors) were the Top Students: They scored the highest (about 83%). This makes sense because they see kids all day, and these rashes mostly happen in children.
• The Family Doctors and Internists were a bit behind: They scored lower (around 73-76%). They still knew a lot, but they weren't as sharp on the details as the kids' doctors.
• The "Reporting" vs. "Diagnosis" Gap: Most doctors knew the rules (e.g., "If it's measles, I must report it"). However, they struggled with the diagnosis (e.g., "Is this actually measles or just a different rash?").
  • Analogy: It's like a firefighter knowing they must call the chief if the fire is big, but struggling to tell if the smoke is from a campfire or a burning building.
• The "Roseola" Winner: The most common rash doctors said they had seen was Roseola (66%). Measles was second (30%), and Rubella was last (17%).
• Everyone Wants to Learn: A massive 91% of the doctors said, "Hey, we need more training on this!" They felt a bit rusty and wanted to brush up on their skills.

4. The "Confidence" Connection

The study found a cool link: The more confident a doctor felt, the better they actually knew the material.

• Metaphor: It's like a driver who says, "I'm a great driver," and actually is a great driver. They aren't just bluffing; their confidence matches their skill. This is good news because it means if we train them more, their confidence will go up, and their skills will get even sharper.

5. Why This Matters Right Now

The paper points out a scary trend: Vaccination rates in Florida are dropping.

• Imagine a community where 95% of houses have sprinklers. The fire can't spread.
• But now, only 92% have sprinklers. That small gap is enough for a spark to turn into a wildfire.
• Because fewer kids are vaccinated, diseases like Measles are coming back. Doctors need to be ready to spot them immediately and report them to stop the outbreak before it spreads.

The Bottom Line

The doctors in Florida are generally smart and know the rules, but they are a little rusty on spotting the specific rashes because they haven't seen them much in recent years (thanks to vaccines working well for a long time).

The Solution? The study suggests we need to give doctors refresher courses (like a "Firefighter Boot Camp") to help them remember the difference between a campfire and a wildfire. If we do that, we can catch these diseases early, report them, and keep the whole state safe from a big outbreak.

Technical Summary

1. Problem Statement

Despite high vaccination rates historically, vaccine-preventable viral exanthems (VE)—specifically measles, rubella, and roseola—are resurging in the United States due to declining vaccination coverage, vaccine hesitancy, and increased travel from endemic areas. Florida is a critical region of concern, having recently moved to end vaccine mandates for children and adults.

The core problem addressed is the potential gap in physician knowledge and clinical readiness to diagnose and report these diseases. While VE cases are increasing, physicians (particularly those trained in the post-mandate era) may lack experience in recognizing atypical presentations, differentiating between similar rash presentations (e.g., distinguishing measles from rubella), and adhering to mandatory public health reporting protocols. Failure to accurately diagnose and report these conditions hinders outbreak containment and public health surveillance.

2. Methodology

• Study Design: An IRB-exempt, cross-sectional survey study.
• Population: Practicing physicians (MD/DO) and residents in Florida, specifically targeting Family Medicine (FM), Internal Medicine (IM), Pediatrics, and Infectious Disease (ID).
• Sampling: Participants were recruited via the Florida Department of Health's public practitioner database. A broad county-based search strategy was used, targeting major metropolitan regions (e.g., Miami-Dade, Broward, Duval).
  • Initial Contact: 1,085 Family Medicine, 1,265 Pediatric, and 491 Infectious Disease emails were sent.
  • Final Sample: 162 physicians completed the survey; 146 provided complete data for analysis.
• Instrument: A 19-item survey distributed via REDCap, consisting of:
  • Demographics: Specialty, years in practice, practice setting (urban/rural), and location.
  • Knowledge (6 items): 3 vignette-based questions testing clinical differentiation of measles, rubella, and roseola; 3 questions on mandatory reporting requirements.
  • Attitudes (5 items): Confidence in diagnosis, perceived complexity of workup, and interest in training.
  • Practices (2 items): Perceived vaccination rates in their patient population and history of diagnosing specific VEs.
• Statistical Analysis:
  • Descriptive statistics for demographics.
  • ANOVA with Tukey post-hoc testing to compare knowledge scores across specialties.
  • Multivariate Analysis of Variance (MANOVA) to assess combined effects on diagnosis and reporting knowledge.
  • Linear Regression to evaluate the relationship between physician confidence (attitude) and knowledge scores.

3. Key Contributions

• First Regional Assessment: This is the first study to specifically evaluate physician knowledge regarding VE diagnosis and reporting requirements within the state of Florida, a region currently experiencing shifting vaccination policies and rising case numbers.
• Differentiation of Knowledge vs. Confidence: The study distinguishes between actual clinical knowledge (vignette scores) and self-reported confidence, finding a strong positive correlation between the two.
• Identification of Specific Gaps: It highlights that while physicians generally understand reporting requirements, they struggle with the clinical differentiation of similar rash presentations, particularly rubella.
• Policy Context: The study provides data relevant to a state that has recently moved toward eliminating vaccine mandates, offering a baseline for the preparedness of the healthcare workforce in a potential post-mandate environment.

4. Key Results

• Demographics: The sample included 74 pediatricians, 48 family medicine physicians, and 24 internal medicine physicians. The mean years in practice was ~22 years.
• Overall Knowledge: The mean overall knowledge score was 78.5% (SD 20.5).
• Specialty Differences:
  • Pediatricians scored significantly higher (82.7%) than Family Medicine physicians (73.3%; p=0.04).
  • Internal Medicine physicians scored 76.4%, falling between the two but not significantly different from either in post-hoc tests.
  • Vignette vs. Reporting: While overall scores differed, there were no statistically significant differences between specialties when analyzing vignette-based diagnostic knowledge or mandatory reporting knowledge separately.
• Diagnostic Performance:
  • Roseola was the most commonly diagnosed VE (66%).
  • Measles was diagnosed by 30% of respondents.
  • Rubella was diagnosed by only 17%.
  • The lowest performance was observed in clinical vignettes requiring the differentiation of rubella.
• Attitudes and Confidence:
  • 91.4% of physicians expressed a desire for additional training on VE diagnosis and management.
  • 26.5% felt that VEs are currently underdiagnosed or misdiagnosed.
  • Linear Regression: There was a significant positive relationship between confidence and knowledge. For every one-point increase in confidence, vignette knowledge scores increased by 10.73% (p < 0.001), and reporting knowledge scores increased by 9.68% (p < 0.001).
• Perceived Vaccination Rates: A majority (52.47%) of physicians perceived that less than 10% of children in their practice area were vaccinated, indicating a disconnect between national data and local physician perception or a reflection of specific high-risk pockets.

5. Significance and Implications

• Public Health Risk: The study confirms that despite generally strong knowledge, critical gaps exist in the clinical differentiation of viral exanthems. In an era of declining vaccination rates and resurgent measles outbreaks, the inability to distinguish between similar rashes (e.g., measles vs. rubella) delays isolation and reporting, facilitating community spread.
• Educational Needs: The near-unanimous desire for training (91.4%) and the correlation between confidence and knowledge suggest that targeted Continuing Medical Education (CME) is urgently needed. Education should focus specifically on:
  • Differentiating clinical presentations of measles, rubella, and roseola.
  • Refreshing knowledge on mandatory reporting protocols.
• Systemic Issue: The findings indicate that knowledge gaps are not limited to a single specialty but are present across primary care disciplines, necessitating a broad, systemic educational intervention rather than specialty-specific fixes.
• Future Directions: The authors recommend expanding this research nationally, analyzing rural vs. urban disparities, and investigating the correlation between years of practice (pre- vs. post-mandate eras) and diagnostic accuracy.

Conclusion: While Florida physicians demonstrate a baseline competence in viral exanthem management, the study reveals specific vulnerabilities in clinical differentiation and a high demand for retraining. As vaccination mandates shift and outbreaks increase, bridging these knowledge gaps is critical for effective outbreak prevention and control.