UK figures, rough, annual, from a quick Google search:
Deaths due to flu complications: 600 - and anything up to 10,000 in a really bad year.
Road accident fatalities: 1784 - about 5 a day, on average. Injuries, obviously, are way higher (160.378 reported in 2018)
Deaths due to cancer: 165,000
Deaths due to heart attack and other circulatory problems (including, presumably, stroke?): 165,000
Deaths due to stroke alone: 32,000
And for the USA:
Approximately 1.5 million heart attacks and strokes occur every year in the United States. More than 800,000 people in the United States die from cardiovascular disease each year—that's 1 in every 3 deaths, and about 160,000 of them occur in people under age 65.
I don't particularly want bird flu, or SARS, or corona virus - or any other kind of bug - but let's keep these things in perspective.