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in infectious diseases epidemiologe, vector is defined as an arthropod or any living carrier[e.g;snail]that transports an infectious agent to asusceptible individual.transmission by a vector may be mechanical or biological. in the letter case, the disease agent passes through a develomental cycle or mulitiplication in the vector
dear sir,i had obtained a demand draft (dd no: -----) on ------ (date) from your bank for rs. -----/- in favor of ----- (the person for whom you took the dd). due to some unavoidable circumstances, this dd is no longer required. hence i request you to cancel the dd and deposit the money into my savings account no: ----- (your account number)thanks,your signature.address the letter to the bank manager and you would get the dd cancelled and money deposited to your account.
最后更新: 2014-11-19
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