Mycoplasma and other Atypicals

Question 1

Atypical pathogens that cause pneumonia

Answer 1

• Legionella
• M. pneumoniae
• Chlamydia pneumoniae
• Chlamydia psittaci

Question 2

Mycoplasma pneumonaie

Answer 2

Walking pneumonia, seen in young adult and its long term, wheezing in someone who doesn’t have asthma, pleural effusion

Question 3

Mycoplasma pneumoniae diagnosis

Answer 3

Clinical suspicion best for immediate result, if available serology test 7-9 days

Question 4

Mycoplasma pneumoniae treatment

Answer 4

Azithromycin or doxycycline or cipro

Question 5

Chlamydia psittaci

Answer 5

Spread via birds to human, “parrot disease”, high fever, abrupt onset

Question 6

Chlamydia pneumoniae

Answer 6

Not very common source of pneumonia, transmission from person to person, gradual onset, pharyngitis, can lead to meningoencephalitis, gulliain barre

Question 7

Chlamydia pneumoniae diagnosis

Answer 7

Rare to establish diagnosis, nasopharyngeal swabs

Question 8

DOC for chlamydia pneumoniae

Answer 8

Doxycycline twice a day orally

Question 9

Legionnaire’s disease transmission

Answer 9

Person to person contact never been demonstrated

Question 10

Legionnaire’s distinct clinical presentation from other pneumonais

Answer 10

Diarrhea, nausea, vomitting

Question 11

Legionnaire’s disease diagnosis

Answer 11

Legionela urinary antigen test, legionella culture of sputum

Question 12

Legionnaire’s disease treatment

Answer 12

Fluorquinolone or azithromycin