Question

24)
The Eyes Have It

Duyen presents herself to
her campus health clinic at
a liberal arts college in Ore-
gon with a two-week history
of nausea, low-grade fever,
fatigue, and mild pain in her
right upper abdominal quad-
rant. As a resident assistant
in her dorm, she is aware that
students with similar signs
and symptoms have been di-agnosed with flu for the past
month. She greets the health
care staff with a sheepish grin
and tells them her self-diag-
nosis. The doctor takes one
look at Duyen’s eyes and skin,
and realizes that this is not
another case of influenza.

1. What is the name of the condition that alarms
the doctor?
2. What disease does Duyen have?
3. How might Duyen have been infected?
4. Which DNA virus causes this disease?

25)
Norovirus in the Dorm

Zac, Tran, Roy, and Justin
were not happy roommates;
in fact, things could not be
much worse for the college
friends. Each of the men
had stomach cramps, fever,
chills, muscle aches, extreme
tiredness, nausea, and, most
distressing, horrible diarrhea
and persistent vomiting. They
had been fighting over the
toilet, and whoever wasn’t in
the bathroom often had his
head in a trashcan. None of
the four had left their suite
for two days, being unable to
venture more than a dozen
feet. The friends had never
experienced such an attack of gastroenteritis. Norovirus had
arrived in the dorm.
Norovirus gastroenteritis
afflicts people living in close
quarters: prisoners, nursing home
residents, vacationers on cruise
ships, and students in college
dormitories. People spread the hardy virus on contaminated hands
and fomites due to poor personal hygiene. Noroviruses are often
transmitted in contaminated water and can spread in undercooked
contaminated food.
The four roommates recovered as their bodies eliminated
viruses from their digestive tracts. They also learned the value of
handwashing, disinfecting bathrooms, and keeping the dorm room
disinfected.

1. Why is vigorously rubbing the hands with hot water and
soap for at least 30 seconds necessary to limit the spread
of noroviruses?
2. Alcohol disrupts lipids. Why isn’t hand antiseptic effective
against noroviruses?
3. How can noroviruses spread via laundromats?
Emerging Disease Case Study
Norovirus in the Dorm

Answer 1

1)The doctor so alarmed because duyen is suffering from jaundice.

Jaundice is caused by build up bilirubin this condition causes eyes and skin to become yellow in colour.

2)Duyen have hepatitis B.

It is a viral infection which affects liver.

3)Duyen have been infected by living in close quarters in dorm rooms it is also spread through intercourse,using contaminated needles and razor etc.

4) Partially double strandard DNA - hepatitis B virus.

Case study 2.

1)By rubbing the hands thoroughly for 30 sec using hot water may remove pathogens from hands.As norovirus sprayed through contamination food,water and objects and by washing hands we cannot spread the virus and also protecting ourselves from self infecting the virus.

2)It is because of the structure of the virus and this norovirus is not lipid coated so antispetic are not affective for this type of vurus.

3)Norovirus is also transmitted fecally so it can spread through laundromats.