Australia has recorded 221,853 flu infections so far in 2017, more than any other year. This article analyses why the 2017 flu vaccine wasn't as effective as hoped, and how flu vaccines are formulated, including critically how long it takes (which makes forecasting which strains will be active and thus should be included in the vaccine),
These words by Ian M. Mackay, Adjunct assistant professor, The University of Queensland and Katherine Arden, Virologist, The University of Queensland particularly apply to us - more so given we are also immune compromised by our CLL: 'Flu virus infection directly damages cells and paves the way for bacterial infections. The elderly are particularly affected by the flu because an older immune system struggles to defend against infections; specialised immune cells are less effective, less able to respond to new viruses and prefer reminiscing about past viral battles which confuse new skirmishes.
An ageing immune system also loses vaccine-induced antibody protection faster than a younger one.'
Photo: Sun setting just before I videoed the rare phenomenon a green flash as it set. The place where I'm staying now must have a reputation for often providing green flashes because I often see photographers recording the sunset. On one night I saw three photographers with expensive cameras on tripods set up to record the event.