http://jad.tums.ac.ir
Published Online: April 10, 2013

J Arthropod-Borne Dis, June 2013, 7(1): 99 S Wiwanitkit, V Wiwanitkit: Filter Paper for…

Letter to the Editor
Filter Paper for Preserving Insects, Bacteria, and Host Reservoir DNA

*Somsri Wiwanitkit, Viroj Wiwanitkit

Wiwanitkit House, Bangkhae, Bangkok, Thailand

Sir, the recent report on “Utility of filter pa-
per for preserving insects, bacteria, and host
reservoir DNA for molecular testing” is very
interesting (Karimian et al. 2011). Karimian
et al. (2011) reported that “The filter paper
method is a simple and economical way to
store, to preserve, and to distribute DNA sam-
ples for PCR analysis.” Many facts should
be discussed. First, this work is only a sim-
ple retrospective observational study. There
is no economic analysis. No data on the cost,
hence, it might not be possible to conclude
that the technique is an economical way.
Second, Karimian et al. (2011) concluded on
preservation. This might be an extrapolating
summary. There must be the proposed mech-
anism how the simple filter paper can preserve

the sample. What the active gradient in the
filter paper that helps preserve must be clar-
ified. It seems that the filter paper is only a
good alternative sample collection method.

References

Karimian F, Sedaghat MM, Oshaghi MA,
Mohtarami F, Dehkordi AS,   Koosha
M, Akbari S, Hashemi-Aghdam SS
(2011) Utility of filter paper for pre-
serving insects, bacteria, and host res-
ervoir DNA for molecular testing. Iran
J Arthropod-Borne Dis. 5(2): 42–50.

*Corresponding author: Prof Dr Somsri Wiwanitkit,
Email: somsriwiwan@hotmail.com

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