I've come down with a fever and need to rest at home; I'll leave by [time].
By WhatsApp
Messaging Your Boss on WhatsApp About A fever
When your team lives on WhatsApp, a message about a fever should stay professional. Keep it brief and slightly more formal than usual.
Say what you need, briefly
A fever leaves you unfit to work and often contagious. Say you've come down with a fever and need to rest; no thermometer reading required.
Stay professional on a casual app
WhatsApp invites shorthand, but a leave request still deserves a clear, complete sentence. Skip voice notes and emojis; a tidy one-line message reads as respectful even on a chat app, and it keeps everything in one place.
Example messages
I'm running a fever and would rather not risk passing it on. I'll head out by [time].
Feverish and can't focus — I'll log off by [time] and catch up once I'm back on my feet.
Mistakes to avoid
Don't rely on emojis or a voice note for a leave request, and don't split it across several chats.
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This page shares wording ideas, not legal or HR advice. Follow your own employer's time-off policy.
Common questions
Do I have to give my temperature?
No. A fever and needing to rest is a complete reason.
Should I follow up by email?
Only if your workplace expects a written record elsewhere. For WhatsApp-first teams, the chat is enough.