The recent deaths should serve as a wake-up call to others at risk.
If you say that something is a wake-up call to a person or group of people, you mean that it will make them notice something and start to take action. The Ambassador said he hoped the statement would serve as a wake-up call to the government
A wake-up call is a telephone call that you can book through an operator or at a hotel to make sure that you wake up at a particular time
a telephone call that you request be made a specific time in order to wake you up at that time (especially in hotels); "she left a wake-up call for 7 a
" a warning to take action concerning something that was overlooked or neglected; "the bombing was a wake-up call to strengthene domestic security
a warning to take action concerning something that was overlooked or neglected; "the bombing was a wake-up call to strengthene domestic security"
a warning to take action concerning something that was overlooked or neglected; "the bombing was a wake-up call to strengthene domestic security