Impact of Distributing Med Kits
MedKits, is the pre-deployment of
medications (Houck). In the case of an anthrax bio-attack, these prophylaxis
pharmaceuticals stored with first responders, individual homes, and local
hospitals can potentially relieve the understaffed points of dispensing (PODs)
distribution channels that local and state health departments have developed as
anthrax preparedness and the delay time for push packs to arrive. Although the
Bravata et al study modeled at what point push packs were ineffective, it did
not consider the addition of MedKits in conjunction to PODs. The Houck et al
study develops a model to estimate the impact of deploying MedKits in a
community ad if it has the ability to reduce mortality in both cases where push
packs are timely and delayed.
The Houck study classifies an exposed individual
to an anthrax attack into either the incubation stage, prodromal stage,
fulminant stage, and/or death. The incubation stage marks an individual who is
infected with anthrax but is asymptomatic. In the Houck study, those
individuals who are in the prodromal stage are aware of infection and can either
seek primary treatment through a POD site or by utilizing a MedKit if they
possess one. As mentioned in the Bravata study, dispensing sites have a fixed
capacity of prophylaxis doses so the Houck model sets a local stockpile of
50,000 doses in addition to push pack doses for an urban city. It assumes that
those who adhere to treatment will not become ill which is a 100% for those who
begin treatment at the prodromal stage or later. They assume that those who
begin treatment in the incubation stage will not adhere to treatment. The model
was run on various models, including one in which those unexposed used MedKits
for fear of infection. Those who take MedKits without exposure use medication
that could have been reserved for those who were actually infected.
The results of the study underscore that
regardless of the number of MedKits distributed, some number of deaths is
unavoidable. There was a mortality rate of 8.2% even with a small attack
(50,000 people exposed), the smallest number of potential exposed people ( 1%
of those not exposed = 49,500), a 90% treatment adherence rate, and the availability
of a push pack within 12 hours and no delay. Thus, confirming Bravata et al’s
conclusions that deaths result from delays in attack detection and time to
start prophylaxis and adherence to treatment.
In large attacks, timeliness in push
pack arrivals helped reduce mortality, albeit by a narrow margin. This leads me
to the conclusion that MedKits are not as effective as push packs or treatment
from a POD if the addition of MedKits does not lower this amount. The study
focused only on urban settings. Perhaps MedKits provided in rural areas may be
more useful where local dispensing centers have a higher likelihood of
possessing lower dispensing capacities. Also, information may travel faster in
smaller tight-knit communities, allowing people to become aware of an anthrax attack
and thereby seeking treatment faster. It seems that rather than focusing on
MedKits, it is more essential to focus strategic efforts on making sure push
packs are delivered in a timely manner, especially n situation where there are
multiple attacks.
The Houck study did not consider the
costs of providing MedKit either. The cost of purchasing, deploying, and
replacing MedKits may be a lot higher than simply increasing the capacity of a
POD. Issues of equity can also emerge if there are not enough MedKits to
provide to every household. Although MedKits seem to inefficacious in large
cities, perhaps it may be more cost-effective in rural towns where the cost of maintaining
local inventories staffing may be higher than simply giving all individuals
access to MedKits until VMI deployments.
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Houck,
Michelle L., and Jeffrey W. Herrman. "Preparing for an Anthrax Attack: The
Impact of Distributing MedKits." Proceedings of the 2011 Industrial Engineering Research
Conference 480th ser. (n.d.): n. pag. Abstract. (2011): n.
pag. Print.
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