The information contained on this page is written to aid the user both in data input and in
understanding output data.
1. User Inputs
The information provided on this page provides the basis for the model calculations. Changes in these
inputs can be made at any time; these changes will impact the model outputs to varying degrees.
The patient flow estimate (section III.1.) is critical in determining total number of clinics, total
staff per clinic, and staff per station. Either method can be used and, regardless of method, the
flow refers to the average flow over a period of time. Increasing flow will require more staff per
clinic and more staff per station but fewer clinics. Again, this estimate can be changed at any
point and will significantly impact the output.
Finally, because the number of variables needed in this model (e.g.,station process times; population
percentages), a number of assumptions have been made and grouped into "process time scenarios"
and "event scenarios" to simplify user inputs. These assumptions can be viewed in Section 7:Summary
of Scenarios.
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2. OVERALL MODEL OUTPUTS (CAMPAIGN AND CLINIC STAFFING)
Presented here are estimates of total core staff per clinic and for the entire campaign. These calculations
assume that all clinics in the campaign are identical—that each contains the same flow layout, the same
stations, and operates for the same period of time (as determined in Section 1.User Inputs). Only the
"core staff" is calculated. This is defined as those staff involved in direct patient contact at each
Station within the clinic. Core Staff include: greeters; forms distributors and collectors; triage
personnel; medical evaluators; counselors and testers (if applicable); transporters; and vaccinating or
drug distributing personnel.
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3. STATION-SPECIFIC CLINIC STAFFING
These are the "core" staff per station involved in direct patient contact. The particular stations within
the clinic of this model are derived from published local plans, simulation exercises, and Weill Medical
College of Cornell research. Additionally, Counseling and Testing (for pregnancy and/or HIV) may or may
not be included as determined by the User Inputs. The particular placement of Medical Doctors, Nurses, and
other Allied Health personnel is NOT calculated and left up to the discretion of local planners and available
resources.
The maximum number of core staff per clinic is an estimate derived from the physical limitations of the
specific clinic (e.g., a basketball court). If the maximum number of core staff is less than that
determined in the above section, the clinic will need to operate under a slower patient flow rate and
the campaign will need to incorporate an increased number of clinics.
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4. SUPPORT/ANCILLARY STAFF CALCULATIONS:
Rather than having a fixed number, this model calculates most support staff as a ratio to core
staff. The user can determine the ratio of core staff to support staff (in most cases, this will
be greater than 1, meaning a single support staff can serve more than 1 core staff). This ratio is
based on a per shift, no downtime estimate of core staff. Additionally, a number of core
staff, particularly those in managerial positions, are simply entered by the user and are
thus fixed. The total support staff is thus calculated for one shift and assumes no downtime
(i.e., 100% utilization)
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5. SUMMARY OF MODEL RESULTS
These results are based on the User Inputs and present the core, support, and combined staff
estimated per clinic and for the entire campaign. These estimates are functions of the many variables
within the model, most importantly the flow rates (of the campaign and per clinic) and the station
process time estimates. Thus, these staff estimates are meant to serve as a guide and point of
reference for planners rather than as an absolute value.
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6. CAMPAIGN MODIFICATIONS DUE TO STAFFING CONSTRAINTS
Planners may be aware of the maximum number of core staff available for a campaign. This number may
be less than that recommended by the model outputs (as calculated from information provided in the User
Inputs) and may thus affect the expected number of patients that can be processed and/or the duration of
the campaign. The calculations contained in this section incorporate both number of shifts and downtime
and estimate a) the expected total number of people to be processed by a campaign with the maximum number
of core staff; and b) the number of days to process the initial population (from the User Inputs) by the
maximum available core staff. Suggestions to achieve the campaign goals despite core staff limitations
are offered; they include increasing the operating hours of each dispensing clinic (thus the work hours
of each staff) and decreasing the station process times (e.g., shortening the length of the form).
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8. FLOW DIAGRAMS
The anthrax model flow plan is based on a number of publicly available state plans, live exercises, and
Weill Medical College of Cornell research. Because the disease is considered non-communicable (for purposes
of mass prophylaxis) and the recommended treatments are to be used "on-label", the flow plan is relatively
straight-forward.
Smallpox is significantly more complex; therefore, flow design is broadly divided into pre-event and
post-event scenarios. In the diagram (Part 2), stations, spoken text, and annotations in grey (located
on the right in the diagram) would be used in a post-event scenario only. All other stations are used
in both pre- and post-event settings.
Pre-Event Patient Flow
In a pre-event mass vaccination campaign, only the stations in the left-hand and center portion of
this flow diagram would be used (i.e., only the un-shaded portion). All persons entering the vaccination
center would be met by a greeter/screener and asked if they felt acutely ill (any positive response in this
pre-event setting would indicate a non-smallpox intercurrent illness like acute asthma , myocardial
infarction, acute panic, etc.). These symptomatic patients would be taken immediately to the medical
evaluation area where health care professionals would assess the severity of symptoms and the likelihood of
a serious underlying medical condition requiring further medical care.
No uniform respiratory precautions would be needed for these symptomatic patients in a pre-event
scenario. Acutely ill would be offered transportation to a medical care facility, while those with a
negative medical evaluation either would be sent back through the standard processing line or would be
sent to a duplicate set of stations with smaller staff in a separate area for symptomatic patients.
Next, all potential vaccinees would be given forms and the means to fill them out (i.e., a writing instrument
and either a clipboard or a tabletop on which to write). These individuals then would be directed to briefing
areas where either videotaped or live briefings would take place with the opportunity for questions. At the
briefing, persons with no self-identified contraindications to vaccination would be given the opportunity to
sign the informed consent declarations for receipt of the vaccine, witnessed by the person sitting next to them.
Individuals would exit the briefing area to the triage area, where persons with no contraindications
would have their paperwork reviewed and approved and those with potential contraindications would be
further questioned. From the triage station, rapid testing for pregnancy and/or HIV may be offered to
those interested or those uncertain about their status. A certain percentage of persons may be denied
vaccination due to contraindications or may decline vaccination due to personal weighing of its risk/benefit
ratio. Others will proceed to vaccination stations where those who have not yet signed their consent form may
do so and have it witnessed.
Prior to exiting the vaccination center, individuals would proceed to the form collection and exit counseling
station where clinic staff would reiterate key points of vaccination site care and would check completeness
of forms for data entry (not shown on the diagram). At any point in proceeding from entry to exit, patients
will have the opportunity to go to the mental health/crisis counseling station located on-site. Those
persons who opt for counseling will have the option to re-enter the vaccination patient flow at the next
appropriate station.
Post-Event Patient Flow
In a post-event setting, all symptomatic individuals and those who may have come in contact with a
smallpox case would be physically separated from the main patient flow at the earliest possible station. This
would be accomplished though use of the grey-shaded comments and stations on the flow diagram. The purpose
of separating the processing of non-contact and “presumed contact” individuals is to minimize the potential
exposure of healthy vaccine recipients to individuals with possible smallpox exposure or infection.
As in the pre-event clinic operation, entry screeners would ask all individuals walking through the door
whether they feel ill. In the post-event setting, these screeners would also ask whether individuals
believe they may have been exposed to someone who has smallpox. Anyone responding to either question in
the affirmative would be sent to the presumed contact area and would be instructed to put on an N95 mask
to reduce the possibility of droplet transmission of the smallpox virus. These individuals would then
undergo screening at the medical evaluation station where detailed questioning about symptoms and exposures
and, if needed, an abbreviated physical examination can be performed. As shown in the diagram, these patients
would be classified into one of four categories:
1. An acute non-smallpox illness such as myocardial infarction that would require immediate
transport to a health care facility (labeled “CRITICAL” in the diagram)
2. A subacute illness that is not suggestive of smallpox and does not require immediate
transport to a health care facility, or no significant illness
3. An illness syndrome that is suggestive of smallpox (e.g., fever and/or severe backache and/or rash)
4. Likely exposure to a case of smallpox
Once sent to the presumed contact area, individuals in all four categories remain there and continue
wearing a mask as they undergo briefing, vaccination, and exit counseling. Upon exit from the clinic,
only those individuals with suspected smallpox or contact would be encouraged to maintain use of the mask
until they reach a treatment or domiciliary facility as recommended by the CDC. These facilities may range
from designated health care centers to the individual's home. Since there are no absolute contraindications
to vaccination for presumed cases or contacts, predetermined protocols will be required to manage individuals
in these categories who decline vaccination. Since under evolving federal and state protocols these
unvaccinated patients may be required to undergo quarantine for a specified period of time, the clinic
design includes a station for counseling and administrative processing of these individuals.
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9. SAMPLE PHYSICAL LAYOUT OF SMALLPOX VACCINATION CLINIC
The floor plan diagram shows how the model smallpox clinic described here can be fit into the area of a
typical high school basketball court, a possible site for clinic activities in the event of a large-scale
prophylaxis campaign. Note that the presumed contact area, including a separate smaller briefing station, is
physically distinct from the non-contact areas. This floor plan shows only one large briefing area in the
non-contact area located on the court, although more could be set up in adjacent rooms. Vaccine
preparation, data entry, and clinic supplies also may require use of adjoining rooms or staging areas.
The floor plan is just one example of how to translate the patient flow plan into a blueprint for
setting up a smallpox vaccination clinic. Situating the clinic in a confined space like a basketball
court necessarily constrains the total number of staff working at the clinic at any given time.
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Table of Contents | 1.User Inputs | 2. Overall Model Outputs | 3.Station Specific Staffing
4.Support Staff Calculations | 5.Summary of Model Results | 6.Staffing Constraints
7.Summary of Scenarios | 8.Clinic Flow Diagrams | 9.Sample Physical Layout
10.Customizable Staffing Model | 11.Technical Appendix
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