Abstract: A method for collecting cellular material from particular cells present in a liquid, that includes: a step (210) of inserting the liquid into a compartment (105) through an upper opening (106) in the compartment, the compartment having a lower opening (107) while between the openings is provided a filter (115) in which the micropores have a diameter between that of the particular cells and that of other cells; a filtration step (215) during which the major portion of the liquid and the other cells flows through the filter; a step (230) of DNA and/or RNA lysing and amplifying; and a step (250) of recovering on the filter the amplified genetic material.

Abstract: Method for collecting cellular material of particular cells present in a liquid includes: a step (210) of introducing the liquid into a compartment via an upper opening of the compartment said compartment having a lower opening, a filter being positioned between the two openings which has micropores of a diameter intermediate between that of said particular cells and that of other cells, a filtering step (215) during which most of the liquid and most of the other cells pass through the filter, a step (230) of lysing the cells retained or: the filter and a step (245, 230) of collecting cellular material from the lysed cells, on the filter.