I guess you never got past middle school maths, on the 31st of march 3 infections of H7N9 were reported and just in 28 days that number of infections has risen to 125. Assuming this growth is constant I could easily calculate that in just 30 days the number of infections will rise to 8874. But given the population density of china, this number could rise well over my calculations.
tl;dr The spread of H7N9 must be taken seriously and has the potential to turn into an epidemic.
