All of the following are true about diphtheria except:
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.
Faucial diphtheria is more dangerous than laryngeal diptheria
Laryngeal diphtheria mandates tracheostomy
Child is infectious with faucial diphtheria
Myocarditis may be a complication