Viral Causes of Skin Rashes Flashcards
refers to any sort of skin inflammation and/or discoloration that changes the skin’s normal appearance. ?
skin Rash
noticeable change in the texture or color of the skin. The skin may become scaly, bumpy, itchy, or irritated.
skin Rash
Rash is not a specific diagnosis.
Common Viral Skin Diseases?
Measles ( Rubeola) • Rubella (German Measles) • Roseola Infantum (exanthem subitum) • Erythema Infectiosum (fifth disease) • Herpes Simplex • Varicella (Chicken Pox) • Herpes Zoster (shingles ) • Warts
Rashes three aspects ?
First, the method by which virus arrives in the skin.
Second, the sites at which virus growth occurs.
Third, the mechanism by which lesions are produced.
possible causes of rashes include the following?
- area of a bug bite.
- Tick bites
- Eczema
- Rheumatoid arthritis (RA)
autoimmune disease that can cause a
rash to form on various body parts.
Rheumatoid arthritis (RA
rash that primarily occurs in
people with asthma or allergies. ?
Eczema
common symptoms
of a viral infection?
fever, headache
and malaise.
rash usually develops?
rapidly
Acute highly communicable viral disease with prodromal fever, conjunctivitis, cough and Koplik's spots which are bluish white ulcers in the buccal mucosa.
Type of viral rash?
Measles (nine-day or red measles)
maculo-papular skin rash all
over the body appears after fever
subsides.
Type of viral ?
Measles (nine-day or red measles)
Humans are the only natural host for
: (-SS) RNA , enveloped
paramyxovirus.
Type ?
Measles (nine-day or red measles)
incubation period of ? is 10
to 14 days.
measles
? virus is a highly contagious negative strand RNA virus that is transmitted via the respiratory route and causes systemic disease.
Measles
? is characterized by fever and skin rash and usually associated with cough, head cold, fever, sneezing and conjunctivitis.
Measles
An infection of the respiratory system ?
Measles
rash is caused primarily by cytotoxic T cells
attacking virus infected cells. ?
Measles
One attack of ? is followed by long lasting
immunity.
Measles
? is one of the leading cause of death in
children.
Measles
? causes a red rash on the body
German Measles (Rubella)
? contagious disease caused by a virus, with symptoms that can include
a low-grade fever, sore throat, and a rash that starts on the face and spreads to the
rest of the body
Rubella
? enveloped (+ SS) RNA virus in the Togaviridae family.
Rubella v
? Symptoms: Aside from the rash, fever and swollen lymph nodes.
Rubella
infection can spread from person to person by droplets of respiratory
secretions. ?
Rubella
Most people who get rubella usually have a ?
mild illness
also be transmitted from a pregnant woman to her developing baby through the bloodstream.
?
German Measles (Rubella)
incubation period of ? ( 12-23 days)
averages 18days.
German Measles (Rubella)
rubella vaccine is usually given to children
when they’re between?
12-15 months old, and
then again when they’re between ages 4- 6
yrs.
German Measles Diagnosed?
Diagnosis with a blood test. • This can check for the presence of different types of
rubella antibodies in your blood .
German Measles Mangement?
- Rest in bed and to take acetaminophen (Tylenol),
- Pregnant women may be treated with antibodies
called hyperimmune globulin that can fight off the
virus.
Congenital rubella syndrome is a serious health concern, as
it can cause ?
miscarriages
birth defects in babies who are carried to
term, including: • delayed growth. • intellectual disabilities • heart defects. • Deafness. • poorly functioning organs.
known as varicella?
Chickenpox
affects children. It is characterized by itchy, red blisters that
appear all over the body. ?
Chickenpox
very rare to have the ? infection more than
once.
Chickenpox
contagious several days before the rash develops (blisters
appear) and will experience other symptoms first ?
Chickenpox
symptoms first, such as: • fever • headache • loss of appetite • It remains contagious until all blisters have crusted over.
Chickenpox
varicella-zoster virus causes the ?
Chickenpox
occur through respiratory aerosols or direct
contact with skin lesions.
?
Chickenpox
Chickenpox Pathogenesis
?
The virus in the respiratory mucosa infects macrophages
and monocytes; at this stage, there are no symptoms. • The virus spreads from the lungs to lymphocytes and
monocytes and to the reticulo-endothelial system. • The virus travels to the skin, mouth, conjunctiva, respiratory
tract and, indeed, to epithelial sites throughout the body. • Here the virus infects epithelial sites forming papule
containing multinucleated cells with intracellular
inclusions. • Spreading of the disease can be from virus in the
respiratory tract (by a cough) or from contact with ruptured
papule on the skin containing infectious virus.
forming papule
containing multinucleated cells with intracellular
inclusions.
Type3 off v?
Chickenpox
Chickenpox Diagnosis?
1. physical exam of blisters on the body 2. characteristic appearance. 3. Culture of the virus from the lesions (a difficult procedure). • 3- Detection of specific antigens. • 4- The characteristic appearance of cells in biopsy specimens of skin lesions can also be used.
Parents will be told to keep children out of school and daycare to
prevent spread of the virus. Infected adults will also be told to
stay home.
Type of v?
Chickenpox
Antihistamine medications or topical ointments may be
prescribed or purchased over the counter to relieve itching skin
by: • Taking lukewarm baths • Applying unscented lotion • Wearing lightweight, soft clothing.
Management of?
Chickenpox
Once ? heals, most people become immune to the virus,
as it stays dormant in the body . In rare cases, it may
re-emerge.
Chickenpox
live attenuated vaccine virus. It leads to antibody
production and cell-mediated immunity.
Of?
Chickenpox v
often results in a
red rash on the arms, legs, and cheeks. ?
Fifth Disease
it’s also known as “ slapped
cheek disease?
Fifth Disease
’s fairly common and mild in most children, but it can be more severe for pregnant women or anyone with a compromised immune system. ?
Fifth Disease
An airborne virus called Parvovirus B19
causes ?
fifth disease.
’s commonly passed around in
elementary schools during the winter
and spring. ?
Fifth Disease
n adults, the main symptom is joint
pain, usually in the wrists, ankles, and
knees.
Fifth Disease
