Leave Letter for Fever: 15+ Templates (2026)
Leave Letter for Fever: 15+ Ready-to-Use Templates for School & Office
A leave letter for fever is a formal written request informing your school, college, or office that you need time off due to illness. It should include the reason (fever), absence dates, and a polite request for approval.
💡 Key Takeaway
- A leave letter for fever must include the date, recipient, reason, absence duration, and polite closing.
- Always submit your fever leave letter before or on the day of absence — late notifications look unprofessional.
- Medical certificates are generally required only for absences of 3+ days, but check your organisation's HR policy.
- This guide includes 15+ ready-to-use templates for students, employees, teachers, and parents.
- Scroll down for a "leave letter for fever after taking leave" template — a common scenario most guides miss.
📑 Table of Contents
- What to Include in a Fever Leave Letter
- Leave Letter Format for Fever (Step-by-Step)
- Leave Letter for Fever — Office Templates
- School Leave Letter for Fever — Templates
- Leave Letter for Fever After Taking Leave
- Email & WhatsApp Fever Leave Messages
- Leave Letters for Viral, Dengue & Typhoid Fever
- Comparison: Email vs Letter vs WhatsApp
- When Is a Medical Certificate Required?
- How Many Days of Leave Can You Take for Fever?
- Best Practices & Common Mistakes
- About the Author
- FAQ
What Should You Include in a Leave Letter for Fever?
Every fever leave letter needs six essential elements to get approved quickly: the date, recipient details, reason for leave, duration, your contact information, and a polite closing. Missing any of these is the most common reason leave requests get questioned or delayed.
📝 Essential Elements of a Fever Leave Letter
| Element | What to Write | Example |
|---|---|---|
| Date | Current date when writing | 15 February 2026 |
| Recipient | Supervisor's name & title | Dear Mr. Sharma, HR Manager |
| Subject Line | Clear purpose statement | Leave Application Due to Fever |
| Reason | Brief mention of fever symptoms | Suffering from high fever (102°F) |
| Duration | Exact start and end dates | 15 Feb to 17 Feb 2026 |
| Contact Info | Phone number for emergencies | Reachable at +91-XXXXX-XXXXX |
| Medical Proof | Attach if policy requires it | Medical certificate enclosed |
| Closing | Polite sign-off | Yours sincerely, [Name] |
How Do You Write a Leave Letter for Fever? (5-Step Format)
Writing a leave letter for fever takes five simple steps: greet the recipient, state your reason, mention dates, add a supporting note, and close politely. Follow this format whether you're writing a physical letter, email, or message.
🔢 5-Step Process
Step 1 — Start with a polite greeting: Address the recipient by name and designation. Use "Dear" for office and "Respected Sir/Madam" for school or government contexts.
Step 2 — State the reason clearly: Mention that you have a fever and are unable to attend work or school. Keep it to 1–2 sentences. Example: "I am suffering from a high fever and am unable to attend the office today."
Step 3 — Specify leave dates: Include exact start and end dates. Example: "I request sick leave from 15 February to 17 February 2026."
Step 4 — Add a supporting note: Mention if you're attaching a medical certificate or if a colleague will cover your work. Example: "I have attached the medical certificate issued by Dr. Mehta from City Hospital."
Step 5 — Close politely: Thank the reader and sign off. Use "Yours sincerely" for office or "Yours obediently" for school. Include your full name, designation or class, and contact number.
Need help writing other types of leave requests? Check out our complete guide on how to write a leave application for any situation.
Leave Letter for Fever — Office Templates (5 Samples)
Office fever leave letters should be concise, professional, and include your employee ID or department. Below are five templates for the most common workplace scenarios — from a simple one-day request to a formal letter with medical documentation.
Template 1: Simple One-Day Fever Leave Letter for Office
Date: [Current Date]
To: [Manager's Name], [Designation]
[Company Name]
Subject: Sick Leave Request Due to Fever
Dear [Manager's Name],I am writing to inform you that I have developed a high fever and am unable to attend the office today. I request one day of sick leave on [date].I will resume work tomorrow and complete any pending tasks. Please contact me at [phone number] for anything urgent.Thank you for your understanding.Yours sincerely,[Your Name]
[Designation] | [Department]
Template 2: Formal Fever Leave Letter with Medical Certificate
Date: [Current Date]
To: The HR Manager
[Company Name]
Subject: Application for Sick Leave Due to Fever
Respected Sir/Madam,
I am [Your Name], working as [Designation] in [Department]. I am writing to request sick leave due to high fever and related symptoms including body ache and weakness.I consulted Dr. [Doctor's Name] at [Hospital/Clinic Name] on [date], who has advised complete bed rest for [number] days. I request leave from [start date] to [end date].I have attached the following documents:- Medical certificate from Dr. [Name]
- Prescription and medication details
Thanking you,
Yours faithfully,
[Your Name]
[Employee ID] | [Department]
Attachments: Medical Certificate, Prescription
Template 3: Email Fever Leave Letter to Manager
Subject: Sick Leave Request — [Your Name] — [Date]
Dear [Manager's Name],
I developed a high fever last night with symptoms including body ache, headache, and fatigue. My doctor has advised 2–3 days of rest.I request sick leave from [start date] to [end date]. [Colleague's Name] can handle my immediate responsibilities, and I will monitor emails periodically for urgent matters.I will submit my medical certificate upon return.Best regards,[Your Name]
[Designation] | [Contact Number]
Template 4: Extended Fever Leave Letter (3+ Days)
[Company Name]Subject: Extended Sick Leave Request — Severe FeverDear [Manager's Name],I am writing to request extended sick leave due to severe viral fever. My condition has worsened over the past two days, and my doctor has advised complete bed rest for one week.I am experiencing high fever (103°F), severe weakness, and dehydration. I request leave from [start date] to [end date] and will provide regular updates about my recovery.I have arranged for task delegation with [Colleague's Name] and attached my medical reports for reference.I appreciate your support.Yours sincerely,
[Your Name]
[Designation] | [Employee ID]
Template 5: Emergency Fever Leave Letter
Date: [Current Date]
To: [Manager's Name]
[Company Name]
Subject: Emergency Sick Leave — Immediate Effect
Dear [Manager's Name],I am writing to inform you of a sudden illness requiring immediate medical attention. I developed a severe fever (104°F) during the night with nausea and body aches, and was taken to the emergency room.The doctor has advised immediate rest and observation. I expect to return in 2–3 days and will update you with a confirmed return date.I apologise for the short notice and appreciate your understanding.Yours sincerely,[Your Name]
For other office leave formats, see our leave application templates for office collection.
How Do You Write a School Leave Letter for Fever?
A school leave letter for fever is typically written by a parent or guardian and addressed to the class teacher or principal. It should mention the child's name, class, the illness, and the expected number of absence days. Students in higher classes may write their own letters.
Template 6: School Leave Letter for Fever (Written by Parent)
Date: [Current Date]
To: The Class Teacher / The Principal
[School Name]
[School Address]
Subject: Sick Leave Application for [Student's Name]
Respected Sir/Madam,
I am writing to inform you that my child, [Student's Name], studying in Class [Grade/Section], is suffering from a high fever since yesterday evening. The temperature reached 102°F, and the doctor has advised complete rest for [number] days.
I request leave for my child from [start date] to [end date]. [He/She] will resume classes after complete recovery, and we will ensure all missed assignments and homework are completed.
I have attached the medical certificate for your reference.
Thank you for your consideration.
Yours sincerely,
[Parent's Name]
Parent of [Student's Name], Class [Grade/Section]
Contact: [Phone Number]
Template 7: School Leave Letter for Fever (Written by Student)
Date: [Current Date]
To: The Class Teacher
[School Name]
Subject: Leave Application Due to Fever
Respected Sir/Madam,
I am [Your Name], a student of Class [Grade/Section]. I am suffering from a high fever and am unable to attend school today.
I kindly request you to grant me leave for [number] day(s) from [start date] to [end date]. I will catch up on all missed work after recovery.
Thank you.
Yours obediently,
[Your Name]
Class [Grade/Section], Roll No. [Number]
Template 8: College Leave Letter for Fever
Date: [Current Date]
To: [Professor's Name / Dean]
[Department Name]
[College Name]
Subject: Medical Leave Application Due to Fever
Respected Sir/Madam,
I am [Your Name], a student of [Course Name], [Year/Semester]. I have been experiencing high fever, headache, and body weakness since [date]. My doctor has advised 4–5 days of complete rest.
I request leave from [start date] to [end date]. Upon recovery, I will catch up on missed lectures and assignments by coordinating with classmates.
I have attached my medical certificate for verification.
Yours respectfully,
[Your Name]
[Course], [Year/Semester]
Roll No. [Number]
Explore more student-specific formats in our school leave application templates guide.
How to Write a Leave Letter for Fever After Taking Leave?
A leave letter for fever after taking leave is written when you were too unwell to notify your employer or school before your absence. The key difference is that you acknowledge the delay in communication, apologise for it, and request that the absence be recorded as sick leave retroactively.
⚠️ Important:
Always submit a retroactive leave letter within 24 hours of returning. According to most HR policies, delays beyond this window may result in the absence being marked as "unauthorised" rather than sick leave.
Template 9: Leave Letter for Fever After Taking Leave (Office)
Subject: Sick Leave Request — Absence on [Date(s)]
Dear [Manager's Name],
I am writing to inform you that I was suffering from a high fever on [date(s)] and was unable to attend work. I apologise for not notifying you in advance — my condition was severe enough that I could not communicate at the time.
I kindly request that my absence from [start date] to [end date] be recorded as sick leave. I have attached a medical certificate from Dr. [Name] for your reference.
I have now recovered and will ensure all pending work is completed promptly.
Thank you for your understanding.
Best regards,
[Your Name]
[Designation] | [Department]
Template 10: Yesterday's Leave Letter for Fever (School)
Date: [Current Date]
To: The Class Teacher
[School Name]
Subject: Leave Application for Absence on [Yesterday's Date]
Respected Sir/Madam,
I would like to inform you that my child, [Student's Name] of Class [Grade/Section], was absent from school yesterday, [date], due to a sudden high fever. We were unable to send prior notice as the fever developed late in the evening.
Please grant leave for [date]. [He/She] has now recovered and will attend classes regularly.
Thank you.
Yours sincerely,
[Parent's Name]
Fever Leave Messages for Email, WhatsApp & SMS
Not every situation calls for a formal letter. In many workplaces and schools, a quick email or WhatsApp message to your manager or teacher is acceptable for short fever absences. Below are ready-to-send messages for each channel.
Template 11: WhatsApp/SMS Fever Leave Message to Boss
"Hi [Manager's Name], I'm not feeling well today — I've developed a high fever and won't be able to come in. I'll rest and keep you updated. Apologies for the short notice. — [Your Name]"
Template 12: WhatsApp Fever Leave Message to Teacher
"Good morning Ma'am/Sir, this is [Parent's Name], parent of [Student's Name], Class [Grade]. [Student] has a high fever today and will not be able to attend school. We will submit a leave letter once [he/she] returns. Thank you."
✅ Pro Tip:
Even if you send a WhatsApp message, always follow up with a formal email or letter when you return. The informal message serves as immediate notification, but HR records typically require a written application.
Leave Letters for Viral Fever, Dengue Fever & Typhoid Fever
Different types of fever require different leave durations and documentation. Viral fever typically needs 3–5 days of rest, dengue fever often requires 7–14 days with hospitalisation, and typhoid fever may need 2–3 weeks for full recovery. The templates below are tailored to each condition.
Template 13: Leave Letter for Viral Fever
Subject: Sick Leave — Viral Fever — [Your Name]
Dear [Manager's Name],
I have been diagnosed with viral fever and my doctor has advised complete rest for [number] days. I am experiencing high fever, body ache, and fatigue.
I request sick leave from [start date] to [end date]. I have attached the medical certificate from Dr. [Name] confirming the diagnosis.
I will keep you updated on my recovery and plan to return on [date].
Thank you,
[Your Name]
[Designation]
Template 14: Leave Letter for Dengue Fever
Subject: Extended Sick Leave — Dengue Fever Diagnosis
Dear [Manager's Name],
I regret to inform you that I have been diagnosed with dengue fever and my doctor has advised complete rest with medical monitoring. I will be unable to attend work from [start date] to [end date].
Given the severity of dengue, recovery typically takes 7–14 days. I will keep you updated on my progress and provide medical documentation.
Thank you for your understanding and support.
Sincerely,
[Your Name]
[Designation]
Template 15: Leave Letter for Typhoid Fever
Subject: Medical Leave Request — Typhoid Fever
Dear [Manager's Name],
I have been diagnosed with typhoid fever and my doctor has prescribed antibiotics along with 2–3 weeks of complete rest. I will not be able to attend work from [start date] to [end date].
Typhoid fever has left me extremely weak, and I need this time to fully recover. I have attached the medical certificate and blood test reports for your reference.
I will notify you once I am fit to return.
Thank you,
[Your Name]
If your fever is accompanied by other symptoms, you may also need a broader medical leave application or a dedicated sick leave application.
Template 16: Half-Day Leave Letter for Fever
Subject: Request for Half-Day Sick Leave — Fever
Dear [Manager's Name],
I am experiencing a mild fever today and would like to request a half-day leave starting from [time] to rest and take medication. I will work through the morning and hand over any urgent tasks before leaving.
I expect to return to full duties tomorrow.
Thank you,
[Your Name]
Need a half-day format for other reasons? See our half-day leave application samples.
Template 17: Work-from-Home Request Due to Fever
Subject: Request to Work from Home — Mild Fever
Dear [Manager's Name],
I have developed a mild fever today but am still able to manage my tasks remotely. I would like to request permission to work from home for today, [date].
I will be available on email and Slack/Teams throughout the day. If my health worsens, I will apply for sick leave and inform you immediately.
Thank you for your understanding.
Best regards,
[Your Name]
Template 18: Leave Letter for Child's Fever (For Working Parents)
Subject: Leave Request — Child's Illness
Dear [Manager's Name],
My child has developed a high fever and requires care at home today. I am unable to attend the office on [date] as I need to ensure proper medical attention.
I expect to return tomorrow, but I will update you if the situation changes. Please let me know if any urgent matters need my attention — I'll be reachable by phone.
Thank you,
[Your Name]
Email vs. Letter vs. WhatsApp: Which Format Should You Use?
The right format depends on your workplace culture, urgency, and company policy. Here's a quick comparison to help you decide.
| Factor | Physical Letter | WhatsApp/SMS | |
|---|---|---|---|
| Speed | Instant | Delayed (hand delivery) | Instant |
| Formality | High | Highest | Low–Medium |
| HR Record | ✅ Accepted | ✅ Accepted | ❌ Usually not accepted |
| Attachments | ✅ Easy | ✅ Physical copy | ✅ Photo/PDF |
| Best For | Most workplaces | Government, schools | Quick first notification |
| Follow-Up Needed? | No | No | Yes — formal follow-up required |
When Is a Medical Certificate Required for Fever Leave?
A medical certificate — also called a doctor's note or fitness certificate — is an official document from a licensed physician confirming your illness and recommended rest period. Whether you need one depends on the number of days absent and your organisation's HR policy.
| Absence Duration | Certificate Typically Required? | Notes |
|---|---|---|
| 1 day | Usually No | Self-declaration is generally sufficient |
| 2 days | Depends on policy | Some companies require for 2+ days |
| 3+ days | Yes (in most cases) | Standard threshold in India and most countries |
| Government jobs | Yes (any duration) | Often mandatory for all medical leave |
| Insurance claims | Yes | Required for paid sick leave benefits |
A valid medical certificate should include the doctor's credentials, patient name, diagnosis, treatment dates, recommended rest period, and return fitness clearance.
How Many Days of Leave Can You Take for Fever?
The number of leave days depends on the type and severity of fever, your doctor's advice, and your organisation's leave policy. Most common fevers require 1–3 days, but serious conditions like dengue or typhoid may need significantly longer recovery periods.
| Type of Fever | Typical Recovery Time | Recommended Leave |
|---|---|---|
| Mild fever (99–100°F) | 1–2 days | 1–2 days |
| High fever (101–103°F) | 3–5 days | 3–5 days |
| Viral fever | 5–7 days | 5–7 days |
| Dengue fever | 7–14 days | 7–14 days |
| Typhoid fever | 14–21 days | 2–3 weeks |
Under India's Shops and Establishments Act, employees are generally entitled to 7–12 days of paid sick leave annually, though the exact number varies by state. Always check your company's specific leave policy for accurate entitlements.
Best Practices & Common Mistakes to Avoid
A well-written fever leave letter can be the difference between a smooth approval and an HR complication. Follow these writing guidelines and avoid the most common mistakes people make.
Do's ✅
- Submit early: Notify your manager before work hours start, or as soon as symptoms appear
- Be specific about dates: Always include exact start and end dates — vague requests cause delays
- Keep it brief: 3–5 sentences for the body is ideal; don't over-explain your symptoms
- Mention a backup: Name a colleague who can handle urgent tasks in your absence
- Attach documentation: Include a medical certificate for absences of 3+ days
- Provide contact info: Share your phone number for emergencies
Don'ts ❌
- Don't use informal language: Avoid emojis, slang, or overly casual phrasing — even in emails
- Don't exaggerate symptoms: Stick to facts; embellishment can backfire if questioned
- Don't skip the subject line: Emails without clear subjects may get missed or deprioritised
- Don't forget to follow up: If you sent a WhatsApp message, submit a formal letter or email on return
- Don't leave duration open-ended: Saying "I'll be back when I feel better" lacks professionalism
Looking for templates for other types of leave? Browse our full library of urgent work leave applications and marriage leave application formats.
About the Author
Vicky Sarin
Vicky is a Chartered Accountant with over 25 years of post-qualification experience and an INSEAD alumnus based in Sydney, Australia. As the founder of Eduyush.com, he has helped thousands of professionals navigate career documentation, workplace communication, and professional certification preparation. His practical experience managing global teams makes him uniquely qualified to advise on workplace leave policies and professional correspondence.Frequently Asked Questions
How do I write a leave letter for fever?
Start with a polite greeting, state that you have a fever and cannot attend work or school, mention specific leave dates, offer to provide a medical certificate if needed, and close with a thank-you. Keep the body to 3–5 sentences for best results.
How do I write a leave letter for fever after taking leave?
Acknowledge that you were absent, apologise for the delayed notification, mention the dates you missed, and request that the absence be marked as sick leave. Attach a medical certificate to strengthen your request. Submit this letter within 24 hours of returning.
Is a medical certificate required for one day of fever leave?
In most private organisations, a medical certificate is not required for a single day of sick leave. However, government employers and some strict corporate policies may require one. Always check your company's HR policy to be safe.
How many days of leave can I take for fever?
For a common fever, 1–3 days is typical. Viral fever may need 5–7 days, dengue fever 7–14 days, and typhoid fever 2–3 weeks. Always follow your doctor's recommendation and check your organisation's paid sick leave entitlement.
Can I send a fever leave letter by WhatsApp?
WhatsApp is fine as an immediate notification, but most organisations require a formal email or written letter for HR records. Send the WhatsApp message first for speed, then follow up with a proper leave application when you return.
How should a parent write a school leave letter for fever?
Address it to the class teacher or principal, mention your child's name and class, explain the fever, specify the leave dates, and offer to submit a medical certificate. Sign it with your name as "Parent of [Student's Name]." See Template 6 above for a ready-to-use sample.
Should I work from home if I have a mild fever?
If your fever is mild and your job allows remote work, requesting a work-from-home day is a practical option. However, if your temperature is above 101°F or you're experiencing fatigue, complete rest promotes faster recovery. Always prioritise health over productivity.
Explore more leave application formats: maternity leave applications | privilege leave guide
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Formats of leave applications
- How to write a leave application
- Leave application for fever
- Leave application for urgent work
- Leave application for marriage
- Leave application for sick leave
- Leave application for office
- Leave application for maternity leave
- Leave application for school
- Leave application for half-day
- Privilege leave
- Medical leave application
How do I write a leave application for personal reasons without disclosing sensitive details?
Keep the application general but professional. Use phrases like:
"I am requesting leave from [start date] to [end date] due to personal reasons. I have made arrangements to manage my responsibilities in my absence."Avoid providing unnecessary details while ensuring professionalism.
How far in advance should I submit a leave application?
For planned leaves, submit your application at least 1-2 weeks in advance. This allows adequate time for approval and task delegation. For emergencies, inform the concerned authority immediately via email, phone, or in person.
How do I address last-minute leave requests due to emergencies?
- Begin with an apology for the short notice.
- Clearly state the emergency and the dates for the leave.
- Offer to handle urgent tasks remotely or delegate them.
Example:
"Due to an unforeseen family emergency, I request leave for [specific dates]. I apologize for the short notice and will ensure essential tasks are managed in my absence."
Can I take a leave of absence for maternity or paternity leave?
Yes, most employers are required to provide maternity and paternity leave to eligible employees. The specific terms of the leave, including the duration and whether it is paid or unpaid, may vary depending on the employer and the individual's situation.
Can I take a leave of absence for military service?
Yes, employees who are called to active military duty are entitled to take a leave of absence for military service. The specific terms of the leave, including the duration and whether it is paid or unpaid, may vary depending on the employer and the individual's situation.
How do I request a leave of absence from work?
To request a leave of absence, you should first check with your employer to see what their policies and procedures are for taking time off. In most cases, you will need to submit a written request for leave to your supervisor or HR department. Be sure to include the reason for your leave, the dates you plan to be out, and any other relevant information.
Can I take a leave of absence for personal reasons?
Yes, in most cases you can take a leave of absence for personal reasons. However, the specific reasons for which you are allowed to take time off will vary depending on your employer's policies and the laws in your state. For example, some employers may allow you to take time off for personal reasons such as to care for a sick family member, while others may only permit leaves for medical reasons.
What happens to my benefits while I am on leave?
Whether your benefits will continue while you are on leave will depend on the specific policies of your employer and the laws in your state. In some cases, your employer may continue to provide benefits such as health insurance and paid time off during your leave, while in other cases, you may need to pay for these benefits yourself or they may be suspended during your leave.
Do I have to pay taxes on my leave pay?
Whether you will have to pay taxes on your leave pay will depend on the specific type of leave you are taking and the laws in your country.
For example, if you are taking a leave under the Family and Medical Leave Act (FMLA) in the US, the pay you receive during your leave may be tax-free.
However, if you are taking a personal leave of absence without pay, you will not receive any pay and therefore will not have to pay taxes on it.
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