This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
All of the following are true about diphtheria except: 
Select and explain. 
A. Faucial diphtheria is more dangerous than laryngeal diptheria, B. Laryngeal diphtheria mandates tracheostomy, C. Child is infectious with faucial diphtheria, D. Myocarditis may be a complication
A: Faucial diphtheria is more dangerous than laryngeal diptheria
Answer: A: Faucial diphtheria is more dangerous than laryngeal diptheria 
Explanation: Diphtheria:

Causative agent – Corynebacterium diphtheriae (Gram +ve bacillus)
Incubation period: 2 - 6 days.
Depending on site present as:

– Nasal diphtheria - Mildest, toxemia is minimal.
– Faucial diphtheria (most common) = Nasopharyngeal diphtheria - More severe than nasal diphtheria.
– Laryngotracheal diphtheria - Most severe, maximum obstructive symptom, tracheostomy may be essential.

Complications :

– Myocarditis - Occurs towards the end of 1st or begining of 2nd week.
– Peripheral neuropathy of descending type.
– Renal failure.
Remember : Cardiac damage is permanent, while recovery of nerve damage is rule.