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This research work on the status of poliomyelitis in Iran, performed in 1954, in 1958-59, consisted in providing data on the past history of the infection and on its present diffusion in this country. The serological and COprologi~al surveys produced evidence of conditions similar to thos.e of other countries .WIth the same public health situation: large and permanent (WIthout seasonal v~riatlOnSJ diffusion of the e~teroviruses, reaching percentages of 37 to 74% (accol~'dmg to the groups) of ca:rri!ers-excreters in a sampling of healthy chi~dren u~der five y~a!'s of age, providing high levels of early and complete Immunlzation against the pohomyelitic disease.

This paper is an account of the preliminary results 01' a study aiming to determine Jhe duration and the mode of the change in the conditions of the poliomyelitic infection in a town (Tehran) that has just passed from the: worst water supply to the most modem; with the, hope that such a study would permit to define the true share of water as a source of contamination in the natural history of the infection."nBut the conditions of the supply with chlorinated water to the, population are yet too confused and these preliminary results do not demonstrate a sufficient difference, after three years, to allow more than an indication corresponding to the one given by the clinicians of an increase in the number of the cases of the disease. In fact, these results are published only as a milestone to this research programme, meant to draw the practicioner's attention to the interest of such surveys and to the help he can provide in their execution and also to the recommended pattern for the immunization of the children in the present situation

Let M be a finitely-generated module over a Noetherian ring R. Suppose 𝔞 is an ideal of R and let N=𝔞M and 𝔟=Ann(M/N). If 𝔟⫅J(R), M is complete with respect to the 𝔟-adic topology, {Pi}i≥1 is a countable family of prime submodules of M, and x∈M, then x+N⫅∪i≥1Pi implies that x+N⫅Pj for some i≥1. This extends a theorem of Sharp and Vámos concerning prime ideals to prime submodules.