No. While frequent hand washing can help, influenza is spread by infected people sneezing and coughing and no amount of of good hygiene or hand washing will stop it as long as enough infected persons are spreading it.
Coughing and sneezing into towels, hands or sleeves reduces the spread of the virus by 90%. Then washing hands completes the task. Low life persons who sneeze and expel lung contents and spittle need to be counseled.
I won’t be around children or lowlifes until the risk has lifted.