Q: My child has had a fever for 6 days and tested positive for Haemophilus influenzae. Should we just observe?

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Question:

Hello doctor. My child has been experiencing a fluctuating fever, ranging from a normal temperature to 38.4°C (without fever reducers), for the past 6 days. We had a PCR test done to find the cause. The results showed no viruses, but Haemophilus influenzae was detected with a Ct value of 28. A chest X-ray showed no signs of pneumonia.

Our doctor mentioned that the high Ct value is a bit unusual, but since this bacteria can be part of the normal flora, it doesn't seem to be a major issue. They advised us to just finish the current 3-day prescription of Clarithromycin syrup and then stop. However, because the fever is still ongoing, I am quite worried. Is it safe to just continue monitoring my child at home?

Answer:

Hello. I understand you must be very worried about the fever lasting for 6 days and the detection of Haemophilus influenzae.

To summarize the current situation:

• Hib detected (Ct value 28) - possibly normal flora

• No pneumonia (X-ray normal)

• Viruses negative

• Currently taking Clarithromycin

【Observe carefully】

Haemophilus influenzae can be part of the normal flora, but a fever lasting for 6 days may require further evaluation.

→ When to revisit the hospital immediately:

• Difficulty breathing or rapid breathing

• Fever over 38.5°C persisting for more than 48 hours after taking antibiotics

• The child is lethargic or unable to eat

• Ear pain or discharge (possibility of otitis media)

→ What you can do right now:

1. Complete the 3-day course of Clarithromycin exactly as prescribed.

2. Keep the child comfortable using fever reducers.

3. Ensure adequate fluid intake.

4. Keep a daily record of any changes in symptoms.

Generally, with bacterial infections, improvement is seen within 48-72 hours after administering appropriate antibiotics. If the fever persists even after completing the 3-day course of antibiotics, a re-evaluation is necessary, and other causes (such as atypical infections, Kawasaki disease, etc.) may need to be considered.

If the child's overall condition is good, you can safely observe their progress as instructed by your doctor. However, if you are feeling anxious as a parent, it is always a good idea to go back for a re-examination.

For extra peace of mind and clear guidance when tracking your child's symptoms, the FeverCoach app is always there to help.

https://fevercoach.us