Also known as fifths disease, this typically mild disease is also known has slapped cheek fever
What is Parvo B19
This classic rash has nasolabial sparing and first affects the face 
What is Parvo Virus B19
Mothers exposed to this disease may have children with cardiac, cerebral, ophthalmic (cataracts), and auditory defects
What is Rubella
Onset is noted by a usually mild course may start as a fever, headache or a runny nose which subside with the onset of a facial rash
What is Fifths disease, Parvo B19?
This bacterial infection often presents with classic URI findings before developing into severe systemic disease, leading to its name being a misnomer
What is Haemophilus influenzae
Known has first disease, this blast from the past known for its devastating sequelae and extremely high virility with a gobsmacking R0 of 20.
What is Rubeola, Measles, English Measles, 14 day Measles
This disease is known for facial and testicular swelling.
What is Mumps
With a complications as high as 30%, this disease's most feared sequelae is a progressive and fatal form of encephalitis
What is measles causing subacute sclerosing panencephalitis. 1/3 Measles patients will suffer some sort of complication.
This disease has a nonspecific prodrome notable for fever, headache, malaise, muscle pain, and loss of appetite before facial swelling occurs.
What is mumps
What is Staphylococcal Scalded Skin Syndrome (SSSS)
Known as Sixth Disease, this rash causing disease has generally high fever followed by a rash
What is Roseola infantum, "Sudden Rash", rose rash of infants, 3-day fever
This disease is known for irritability, poor PO intake, and a painful rash in a characteristic distribution
What is hand foot and mouth disease
This is the most feared complication of Parvovirus B19
What is pancytopenia?
After 2-4 days of its initial prodrome, this disease as these classic oral findings 
What are koplik spots?

This pediatric rash causing disease initially starts with a "white" strawberry tongue before progressing to a "red" strawberry tongue.
What is scarlet fever?
Known as Second Disease, this rash causing condition is caused by a bacteria and is the #1 cause of aortic stenosis in developing countries
What is Scarlet Fever, Scarlatina, Streptococcus pyogenes
This disease has a rash that starts on the face and behind the ears and spreads to the rest of the body
What is Measeles, Rubeola
Although complications are rare, infection with this disease can cause deafness and fertility issues later in life.
What is Mumps?
This disease's prodrome is noted by a sudden onset of high fever of 103° to 106° F with few or minor symptoms, before onset of a rash
What is sixth disease?
How would one delineate between Rubella and Rubeola?

Also known as Third Disease, this rash causing disease starts on the face, is generally mild, is a TORCH infection, but can rarely have devastating sequelae
What is Rubella, German measles, 3-day measles
Continuously running eyes and nose, this prodrome is classic for measles
What is Coryza
Lasting up to 2 years, by what mechanisms can Measles causes immunosuppression resulting in pneumonia, acute otitis media, and infectious diarrhea
What is immune amnesia, kills acquired immune memory by killing memory B and T cells, which can cause deaths from other diseases.
This diseases's initial symptoms similar to influenza, however the appearance of a rash on the face which spreads to the trunk and limbs and usually fades after three days makes it distinct
What is Rubella, German Measles, 3 day Measles
Similar to Mumps, this vaccine preventable disease's CNS complications include deafness
What is Haemophilus influenzae
Known has forth disease or Dukes Disease, this bacterial disease is noted for a desquamating rash and the need to initiate clindamycin
What is Staphylococcal Scalded Skin Syndrome
This morbilliform rash typically appears after fever subsides, and patients will appear well.
What is Roseola, or 6th disease
These are the top 3 complications of measles
This disease's prodrome is of fever, sneezing, conjunctivitis (occasionally photophobia) and a characteristic cough
What is measles, what is a brassy cough
These spots can be seen in Rubella, Rubeola, and Scarlet fever
What are Forchheimer spots?