4.1. Literature Review of Cases
In terms of the two slow cases, the first outbreak affected only humans; both humans and domestic pets (such as hamsters and mice) were affected during the second outbreak. The literature highlighted that both were foodborne infectious that were ultimately identified through PulseNet, a system operated by the Centers for Disease Control and Prevention which uses DNA information to detect outbreaks [
29]. The pulsed-field gel electrophoresis (PFGE) subtyping allowed astute epidemiologists to identify an increase in specific strains of Salmonella in PulseNet. However, there was a significant lag between the first symptoms and PulseNet analysis to detect the outbreak. In large part, this is due to the fact that cases—initially not thought to be related—were later linked to the outbreak through retrospective analysis of PFGE patterns in PulseNet.
Both slow cases involved many states—as many as 21 in one outbreak [
30]. States were geographically dispersed, such as cases in both Minnesota and South Carolina [
31]. The literature indicates the detection of the outbreak was impeded by the extent to which the cases were “dispersed temporally and geographically” [
32]. Additionally, Salmonellosis typically has low fatality rates in humans, though many rodents died in one of the two cases [
31]. This may have contributed to the delay in detection. Ultimately, without the PFGE suptyping that was aggregated in PulseNet for further analysis, it is unlikely that either of these outbreaks would have been characterized or successfully investigated to a source.
In terms of the fast cases, the rapid onset of severe rabies symptoms probably aided in detection; additionally, the astute clinician rapidly identified confounding risk-factors for the disease [
33]. Even though rabies is not frequently observed in the United States, unlike many tropical diseases, clinicians are frequently aware of clinical signs that may indicate rabies infection. The second fast case—like the second slow case—affected both humans and animals, in this case, livestock. This outbreak affected areas historically unaffected by anthrax, and resulted in a significant increase in anthrax cases in cattle [
34]. Given the large outbreak and the patient’s direct contact with dead cattle, the clinician rapidly gave a presumptive diagnosis of anthrax which was later confirmed in the laboratory. This was the first case of cutaneous anthrax in the United States for eight years [
34], and preceded the 2001 attacks with
Bacillus anthracis.
The literature provides important information which aids in describing the detection of these four cases. It is clear that consistent and multi-state use and access to PulseNet is critical for detection, and that the frontline providers are often key in making rapid detections. However, the literature does not provide much insight into whether federalism, bureaucratic behavior, or institutional design that may have impacted detection. As such, we turn now to the interview and survey which specifically explored these intersections.
4.2. Interview and Survey Results
Thirty individuals, with a direct role in detecting zoonotic disease outbreaks, were asked to participate in the research, with a response rate of 60 percent (
n = 18). Of these respondents, eight were from the fastest cases to detection (44%), six from the slowest cases (33%), and four from other outbreaks (22%). Additionally, three individuals were not willing to participate in the research due to confidentiality concerns, or because they did not feel as if they could recall the events correctly. This response rate is typical of survey instruments [
35]. Of these respondents, 50 percent completed the survey and 50 percent were interviewed by phone. While there is no doubt this is a small sample size, there are a limited number of individuals that have been directly involved in the detection of a zoonotic disease outbreak, and this sample represents a key number of those individuals.
Table 1 provides a breakdown of respondents by level of government and sector.
Table 2 indicates role of respondent. Further disaggregation of these results is not possible due to confidentiality concerns.
Table 1.
Response Information for Survey/Interview by Level of Government and Sector.
Table 1.
Response Information for Survey/Interview by Level of Government and Sector.
Sector/Level | Local | State | Federal | Total |
---|
Human Health | 2 | 7 | 2 | 11 |
Animal Health | 0 | 5 | 2 | 7 |
Total | 2 | 12 | 4 | 18 |
Table 2.
Role of Respondent.
Table 2.
Role of Respondent.
Role | Total |
---|
Laboratory | 3 |
Official/ Practitioner | 15 |
Total | 18 |
4.2.1. Impediments to and Facilitators of Detection
Respondents were specifically asked to identify impediments and facilitators to detecting zoonotic disease outbreaks, in order to ascertain whether issues of governance arose naturally. They were requested to answer with a specific outbreak in mind—either one of the slow or fast cases identified previously, or another outbreak as identified in their response.
Table 3 lists the top three impediments identified;
Table 4 lists the top three facilitators for each group of respondents (outbreaks detected slowly, outbreaks detected rapidly, and other outbreaks).
Table 3.
Top Three Impediments for Zoonotic Disease Outbreak Detection and Reporting.
Table 3.
Top Three Impediments for Zoonotic Disease Outbreak Detection and Reporting.
Impediment | Response Percentage (n = 18) | For Outbreaks Detected Rapidly (n = 8) | For Outbreaks Detected Slowly (n = 6) | For Other Outbreaks (n = 4) |
---|
Knowledge/obligation to report | 44% | 38% | 17% | 100% |
Diagnostics | 33% | 50% | 17% | 25% |
(tie) Astute, Aware, Educated Providers | 22% | 25% | 33% | 0% |
(tie) Funding | 22% | 13% | 33% | 25% |
Table 4.
Top Three Facilitators for Zoonotic Disease Outbreak Detection and Reporting.
Table 4.
Top Three Facilitators for Zoonotic Disease Outbreak Detection and Reporting.
Facilitator | Response Percentage (n = 18) | For Outbreaks Detected Rapidly (n = 8) | For Outbreaks Detected Slowly (n = 6) | For Other Outbreaks (n = 4) |
---|
Diagnostics | 44% | 63% | 50% | 0% |
Communication and Collaboration between Agencies and Practitioners/Laboratories | 39% | 50% | 50% | 0% |
Astute, Aware, and Educated Providers | 33% | 25% | 33% | 50% |
For impediments, respondents specifically mentioned the lack of knowledge regarding both federal and state reporting requirements and how to report diseases. Specific impediments included the lack of awareness amongst providers and practitioners about reporting requirements and law, resource or time burdens of reporting, and the pressure from clients (both on the veterinary and human side) not to report. For diagnostics, respondents primarily mentioned the need for and lack of rapid, cost-effective, sensitive, and specific diagnostic tests, particularly for diseases less commonly observed in the United States. A lack of electronic reporting was also noted as a gap. Respondents also cited the gap of awareness, education, and training amongst providers and practitioners regarding zoonotic disease threats, and the understaffed and under-resourced nature of many local and state departments which work to detect zoonotic disease outbreaks.
It is possible to note some differences between the groups of respondents. Those involved in “fast” outbreaks more frequently cited that a lack of knowledge regarding reporting requirements and diagnostics impeded rapid outbreak detection more than those who responded from “slow” outbreaks. Those involved in “slow” outbreaks spoke more often about a lack of astute and trained providers and funding issues. Given the criticality of diagnostics and electronic reporting in detecting the “slow” outbreaks, it is not surprising that this group of respondents did not cite this as a significant impediment to detection. Interestingly, all of the respondents involved in the “other” disease outbreaks cited that a lack of knowledge about disease reporting requirements impeded outbreak detection.
Diagnostics emerged at the top of the list for facilitators. Rapid, sensitive, and specific diagnostic testing was cited by both groups of respondents (“slow” and “fast” cases) as a key factor that facilitated outbreak detection and reporting. Interestingly, those responding from the “other” group did not mention diagnostics. Respondents from both the rapidly and slowly detected outbreaks frequently mentioned that communication and cross-agency cooperation, as well as collaboration between practitioners and laboratories facilitated detection. Just “picking up the phone to discuss” was often mentioned as a way to facilitate detection. Finally, astute and trained providers can be critically important to rapidly detecting and reporting outbreaks with the appropriate training and keen knowledge particularly on asking the right questions to capture suspected zoonotic disease exposures. However, it is interesting that the respondents for the rapidly detected outbreaks did not mention this more frequently, given the importance of this factor in the detection and reporting of those rapidly detected outbreaks.
4.2.2. Collaboration between Sectors
Next, respondents were specifically asked about the collaboration and coordination between animal health and human health agencies/entities in detecting the specific outbreak. This question resulted in some of the most diverse responses characterizing the relationship, from “miserable” to “contentious” to “we worked great together” and “there were and are no issues”. Interestingly, nearly all respondents (89%) volunteered that they felt as if this issue varied dramatically by state.
The majority of respondents from both the human health side (63%) and animal health side (57%) reported that their working relationship between the two sectors was positive. Many provided concrete observations of bilateral press releases, publications, and outreach to ensure a consistent public message. Of those reporting a problem (n = 6), most were linked to outbreaks that were detected slowly (67%). Interestingly, the individuals noting problems between the two sectors focused on response to zoonotic disease incidents rather than detection to the incidents. Additionally, respondents stated problems with not working towards a common goal successfully and problems or barriers to effective information sharing.
4.2.3. Federalism
When explicitly asked about the role of federalism in zoonotic disease detection and reporting, only a single respondent suggested that federalism played a role. Interestingly, this respondent also noted that federal reporting requirements for specific diseases did impact detection and reporting. However, an additional three respondents noted that federalism was not important in detection or reporting, but was critically important in response; collaboration between state and federal agencies during the response phase was problematic. Though respondents did not recognize federalism as playing a role when questioned explicitly, four individuals did offer that individuals at the local level are not provided enough deference by state and federal officials, who must conduct their own investigations into the disease outbreak. Responses were equally distributed across the fast, slow, and other cases.
4.2.4. Institutional Design and Bureaucratic Behavior
In comparison to federalism, many more respondents (50 percent or n = 9) suggested that institutional design and bureaucratic behavior play a role in zoonotic disease detection and reporting. These nine respondents included respondents from the slow (n = 3), fast (n = 4), and other (n = 2) cases; or 50% of the respondents from each of these groups. Of these nine respondents, 44 percent (n = 4) noted that they felt that institutional design and bureaucracy was actually a positive factor; three others suggested it was negative, and two thought it was both positive and negative. In all, six of the nine respondents stated that institutional design and bureaucratic behavior could or did play a positive role; in their remarks, respondents cited their own state system as a “model” of a bureaucracy that was effective for practice. Regarding the potential negative influence of bureaucratic behavior on zoonotic disease detection, comments specifically focused on behavior and lack of coordination or communication amongst executive agencies, resulting in “siloes” and “misguided budget priorities”.
4.2.5. Other Factors
Finally, respondents were asked if there were other factors, not yet discussed, that could improve U.S. zoonotic disease detection and reporting, based on their experience in the field. These responses were not broken out between the groups as respondents replied “in general” rather than with reference to a specific outbreak. Interestingly, 10 of the 18 respondents specifically cited interpersonal relationships: knowing the person on the other end of the phone, in a different sector, that they could speak to both officially and informally.
Table 5 lists the other responses to this question.
Table 5.
Top Three Improvements Suggested for Zoonotic Disease Detection and Reporting.
Table 5.
Top Three Improvements Suggested for Zoonotic Disease Detection and Reporting.
Improvement | Response Percentage (n = 18) |
---|
Interpersonal Relationships/Communication | 67% |
Education (Practitioner and Public) | 22% |
Resources | 16% |
Resources and education/training (which requires resources) are commonly discussed factors for improving zoonotic disease detection and reporting for example, [
36]. While outside the scope of this research, it is unclear to what extent the outcome—faster disease detection, reporting, and ultimately response—is linked back to specific inputs. Given an era of fiscal uncertainty and tight budgets—particularly at the state and local level—it is important that resources be used as effectively as possible. However, while the argument can most definitely be made that zoonotic disease detection requires more resources [
7,
8], determining the most appropriate allocation of these resources remains difficult.
4.3. Discussion
Theoretical literature suggests that federalism, institutional design, and bureaucratic behavior could play a significant—and by most accounts—detrimental role in zoonotic disease detection. Indeed, there are pieces of empirical evidence that suggest the same. However, there is also information which suggests that these factors could play a role in facilitating rapid zoonotic disease detection. This section connects the gathered empirical evidence on outbreak detection—in particular, the responses to the interview/survey instrument—with the theoretical literature on federalism, bureaucratic behavior, and institutional design.
The factors listed in
Table 3 and
Table 4 are well in line with those involved in zoonotic disease detection and reporting. Indeed, the literature review on these outbreaks also indicated the importance of diagnostics (including electronic reporting, as indicated in the outbreaks that were detected slowly) and astuteness of providers in disease detection. However, the more important question is: are these factors influenced by federalism, bureaucratic behavior, or institutional design? Certainly, three of the factors can be connected back to issues of governance.
First, and perhaps most importantly, is the knowledge or willingness to report notifiable diseases (
Table 3). This factor was listed by respondents as the number one impediment to rapid detection. As a direct result of a federalized system where powers are reserved to the states, each state has varying requirements for reporting (e.g., how fast and who has to report); reporting of many notifiable diseases is often voluntary from the state level to the federal level. This regulatory framework may be detrimental to rapid zoonotic disease detection, particularly in multi-state outbreaks where these inconsistencies across states can easily delay recognition and/or response. It has been suggested that a more consistent regulatory approach and additional state to federal reporting requirements (and penalties for failure to report) would “encourage” and facilitate detection and reporting.
Second, respondents cited communication and collaboration across agencies and roles as an important facilitator in detecting and reporting past outbreaks. Interestingly, many theories of bureaucratic behavior indicate that executive agencies may choose to compete or compartmentalize information rather than cooperate. Indeed, this was reflected in the responses to the question regarding collaboration between the sectors (animal and human): one respondent suggested that absolutely no interaction occurred between the two sectors (animal health and human health) in the zoonotic disease outbreak which hampered detection and response; a concerning matter which has also been identified in past research [
37]. However, respondents also suggested that effective cooperation between agencies occurs regularly in certain states, leading to positive outcomes for human and animal health.
Third, funding was reported as an impediment by respondents as well as a top three need to improve zoonotic disease detection and reporting. Resources were also mentioned in the outbreak literature review and predicted by theories of institutional design and behavior: some agencies have significantly more resources and/or influence, based on their design and behavior interacting with stakeholders. Moreover, in a federal system, each state operates with different capabilities and funding allocations based on the interests of the state. As noted by respondents and literature on zoonotic disease, deficient levels of funding can result in a lack of personnel, old IT systems, insufficient diagnostic equipment, or an absence of zoonotic disease education in either the animal or human health sectors—all of which could potentially delay zoonotic disease detection.
Despite the fact that implicitly some of the respondents’ remarks regarding factors that facilitate or impede zoonotic disease detection can be identified as a consequence of federalism, respondents did not explicitly state that federalism played an important role in facilitating or impeding zoonotic disease detection. This is particularly interesting given the number of comments about state-specific success in zoonotic disease detection—a result of a federal system where states are independent actors with delegated and reserved powers. Some states may develop highly effective ways to facilitate interaction and collaboration facilitating disease detection. However, these comments are consistent with other research, where states have emerged as innovators [
38] in both disease detection and reporting practices. Federalism—with the ability for states to create their own infrastructure, processes, regulations, and organizations—can facilitate detection. Electronic reporting, formal pathways between animal health and human health agencies, close relationships with producers and farm veterinarians, as well as informal training and workshops were all mentioned as specific mechanisms to facilitate zoonotic disease detection within a state.
Respondents did both implicitly suggest and explicitly state that bureaucratic behavior and institutional design affected the detection and reporting of the zoonotic disease outbreak: half of the respondents believed there was an impact. However, six of these nine respondents suggested that their experiences with bureaucratic behavior were not negative. This empirical evidence reinforces results found in an examination of the 1999 West Nile Virus outbreak in New York State [
39], where initially the author notes questions of jurisdiction and authority (both between levels of government and across sectors of government) but finds that intergovernmental operations were also flexible, adapting and acting effectively across jurisdictions and sectors. While this is a divergence from what is commonly suggested in the theoretical literature—that executive agencies tend to compartmentalize information and fail to coordinate effectively—it is important to note that there were also respondents who clearly indicated that coordination problems and information siloes remain. It appears that certain states have better communication and collaboration processes in place across executive agencies, and as such, the behavior of bureaucracies and institutions and experience of officials and practitioners varies by state. Flexibility and adaptability of regulatory processes and ease of communication in matters of disease detection and reporting appears critical to rapid detection.
In sum, it is clear that federalism may impact the timeliness of zoonotic disease detection and reporting: while respondents did not explicitly cite federalism, implicitly they relayed multiple remarks demonstrating that regulatory differences across states and between states and the federal government is problematic, as also indicated in the outbreak and theoretical literature review. However, the ability of states to form and shape their own institutions and processes can also facilitate rapid detection through efficient collaboration. A federal system of governance therefore has multiple consequences for zoonotic disease detection with opposite effects. The evidence collected here on the impact of bureaucratic behavior and institutional design also remains mixed, though ultimately the impact of these factors appears to vary by state and outbreak circumstances. It seems likely that effective behavior and well-designed institutions and processes can facilitate detection, while compartmentalization of information, funding issues, and poor cooperation between executive agencies (between the animal and human sectors) can all impede detection of zoonotic disease outbreaks.