What's the plural form of pneumonia? Here's the word you're looking for.
Answer
The noun pneumonia can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be pneumonia.
However, in more specific contexts, the plural form can also be pneumonias e.g. in reference to various types of pneumonias
or a collection of pneumonias.
The patient may become acutely ill and need to be admitted to the hospital with pneumonia.
I am just recovering from a terrible cough and infection that my doctor diagnosed as walking pneumonia.
In December she was finally put on the wait list, but then developed a lung infection that led to pneumonia.
And on the nursing front, Alwin notes that there's been an outbreak of atypical pneumonias in Asia, possibly harbingers of a more virulent flu strain to come.
Five to 15 days after exposure a pneumonia that is not very different from other less virulent pneumonias acquired in the community develops.
Radiographically, SARS is closely mimicked by bacterial bronchopneumonia or other viral pneumonias.