Emily Weddall was stationed in the Meath Hospital, Dublin in October 1918, during the height of the outbreak of the Spanish flu. This was the second of the three waves that traveled around the world quicker than in peace time, as it was still officially wartime. One month later the war was over but the flu epidemic had many more lives to claim before it finally dissipated in the spring of 1919.
As a trained nurse, her services were in high demand. She seemed to have an greater than average resistance to illness, and was one of the few to escape the ravages of that particularly virulent virus.
…But in 1918, as World War I approached its end, nothing could have prepared them for what was to come – the deadly Spanish Flu. Massive troop activities and a population weakened by hunger and war helped spread the disease. There was no cure for Spanish Flu, and doctors struggled to treat it. Good nursing was the only thing that helped and it was typically women that bore the brunt of trying to halt this deadly killer…https://www.hippocraticpost.com/events/nursing-during-the-1918-flu-pandemic/
As stated above good nursing was key to making the victims as comfortable as possible. Emily, who was trained by Margaret Huxley, who was like her English counterpart Florence Nightingale, revolutionised Irish nursing. Emily had some contact with the Florence Nightingale Nurses, and may have done some training with them. She was well qualified to nurse the flu victims.
http://rcnarchive.rcn.org.uk/data/VOLUME088-1940/page027-volume88-february1940.pdf retrieved 02/06/2014