The name of this virus with respect to the naming convention mentioned above is literally "A/California/7/2009(H1N1)pdm", which you'll note has two specific places in it, one abbreviated and one not.
For the Northern Hemisphere this flu season they recommend strains like A/Brisbane/02/2018(H1N1), A/Kansas/14/2017(H3N2), B/Colorado/06/2017, and B/Phuket/3073/2013.
Those are virus strain identifier names, not disease common names. IN that case the disease is called influenza.
The WHO advice applies to the common usage:
As these best practices only apply to disease names for common usage, they also do not affect the work of existing international authoritative bodies responsible for scientific taxonomy and nomenclature of microorganisms.
The WHO's recommended name for the virus that involved in its previous announced pandemic is "A(H1N1)pdm09", which literally stands for "pandemic disease Mexico 2009": https://www.who.int/influenza/gisrs_laboratory/terminology_a...
The name of this virus with respect to the naming convention mentioned above is literally "A/California/7/2009(H1N1)pdm", which you'll note has two specific places in it, one abbreviated and one not.