TUBERCULOSIS:
A Ghost Reawakened
By Jessica Faller-Berger
At
the beginning of the twentieth century, “Consumption”
plagued humanity. In the 1800s, consumption, or Tuberculosis
(TB), was incurable. Those afflicted by the disease suffered
the pain of stigmatization along with an early, laborious
death. Although its victims were viewed as lepers, no
eschelon of society was immune to the effects of TB. At
the mercy of this eerie malady, some of the nineteenth
centuries’ most reknowned playwrights, artists and
actors slipped into early immortality. While animal species
and plant lineages are lost forever to extinction, hardy
strains of Mycobacterium tuberculosis live on, impervious
to the ravages of time. Indeed, stepping backwards to
the year 460 BC, Hippocrates classified Pthisis (Tuberculosis)
as “the most widespread disease of the times...and
it is almost always fatal” (NJMS National Tuberculosis
Center,1996).
Amazingly, some 2,458 years later, tuberculosis still
commands worldwide efforts aimed at its annhiliation.
According to the Massachusetts Department of Public Health,
the Bacille-Calmette Guerin (BCG) vaccine for Tuberculosis
is “the most common vaccine used in the world”
(1995). Despite utilization of this controversial inoculation,
the World Health Organization (WHO) estimates that 3 million
people die from tuberculosis every year. WHO conjectures
that another 8 million people contract the disease annually.
Once thought to have been virtually eradicated by the
mid-1980’s, TB resurges as a major health threat,
trans-continentally.
Even as they died from tuberculosis, some of our most
beloved artists captured eternity through the ethereal
hourglass of creation. Emblazoned upon canvas or stage,
artists affected by TB rendered public awareness of their
suffering. Thus, the effects of TB reverberate in the
silent frames of 1800s masterpieces. For instance, the
otherworldly Aubrey Beardsley urgently amassed a vast
body of work before succombing to TB at age 25 in 1898.
Diagnosed at age seven with the then fatal illness, it
is no suprise that Death inks its subconscious countenance
upon his work. At 18 years, Beardsley described himself
as having “a vile constitution, a sallow face and
sunken eyes, long red hair, a shuffling gait and a stoop*”
(Beardsley, Aileen Reed, 1991). John Keats exerted a powerful
influence upon the young Beardsley.
Footnote
It is possible that Beardsely’s deformity resulted
from a complication of untreated TB, tuberculosis
osteomyelitis. This bone tuberculosis occurs after
the body forms other tubercular lesions. When tuberculosis
infects the vertebrae, the TB bacterium are encased
within a bone cavitation, and can later collapse,
leading to a hunchback appearance. (Monahan,Drake
& Neighbors,1994, page 1391) |
One
of London’s most outstanding poets, Keats, (1795-1821)
worked feverishly, foreboding his early death at age 24.
Tuberculosis forewarned Keats of his own demise by first
stealing his mother, and then his brother to an early
grave. As such, entire families were dismantled by tuberculosis.
Tenessee Williams illuminates the effects of TB upon the
family structure in his one act play, ‘This Property
is Condemned”. Here, Alvah falls prey to the dangers
of prostitution, and then dies from “lung affection”.
Edvard Munch (1863-1944) witnessed the death of his mother
and sister to this dreaded blight(www.angelfire.com).
Consequently, tuberculosis casts its greenish hue in the
palette of Munch’s other famous painting, ‘The
Sick Child’. Lately exhumed to decorate the walls
of a local Nursing School, the “Sick Child”
is as timely now as it was in the 19th century.
Question:
Exactly what is tuberculosis?
Answer:
Tuberculosis is a chronic infection caused by the acid-fast
bacillus, Mycobacterium tuberculosis. It primarily affects
the lungs. For most people, a diagnosis of tuberculosis
refers to asymptomatic, disease-free infection with M.
tuberculosis. Specific high-risk populations newly diagnosed
with TB infection are prescribed prophylactic medications.
This preventative therapy insures the continued health
of newly converted TB positive people. Anyone not prescribed
preventative therapy should learn about the signs and
symptoms of tuberculosis disease, and report immediately
to their physician should these ensue.
Question:
Do a lot of people with TB infection actually get TB disease?
Answer: Approximately 10% of the people infected with
M. tuberculosis will progress to TB disease(Monahan etal,1995).
In rare cases, TB can spread from the lungs to other organs.
Extrapulmonary sites (outside the lungs) include the throat,
kidneys, spine, joints, and meninges of the brain. Disseminated,
or miliary tuberculosis travels throughout the body in
the bloodstream. This can lead to sequalae such as Tuberculosis
osteomyelitis.
Question:
If tuberculosis travels through the bloodstream, do you
catch it like HIV or Hepatitis B? If I wear a condom,
does that mean I won’t contract TB?
Answer:
Wearing a condom does not prevent TB. TB is transmitted
through the air in droplet nuclei. TB transmission occurs
when a person who has TB disease sneezes, coughs, sings
or laughs and an uninfected, susceptible person inhales
the expectorated droplets. Unlike the bloodborne diseases
HIV or Hepatitis B, TB is airborne.
Question:
If you can catch TB just by breathing it, that must mean
that TB is mega-contagious!
Answer:
Fortunately, acquisition of TB is dose dependent. One
must be repeatedly exposed to TB in order to catch it.
So, TB is not “mega-contagious”.
Question:
You mentioned a bunch of artists who got sick from TB.
I’m an art major at Hampshire College. Does that
mean I’m at risk for TB?
Answer:
No. Being an artist is not a risk factor for TB. People
who are though to be at risk for TB include the poor,
the homeless, prisoners, migrant farmers, babies and children
exposed to TB, elderly residents of nursing homes, health
care workers at long-term care facilities, and denizens
of crowded urban areas (American Academy of Pediatrics,1994).
Immunocompromised people are at especially high risk for
TB.
Question:
Do you mean people with AIDS?
Answer:
Yes, people with AIDS harbor a special vulnerability to
tuberculosis. Moreover, any condition that adversely affects
the immune system increases the risk for acquiring TB.
Question:
What conditions particularly jeopardize the immune system?
Answer:
Factors associated with immunocompromise include anorexia,
diabetes, silicosis, alcoholism, leukemia, kidney disease,
steroid therapy, intravenous drug use, and cancer of the
head or neck. (Center for Disease Control,1993).
Question:
I have diabetes and just got hired at a nursing home.
That’s already two risk factors for TB! What should
I do?
Answer: Protect yourself. Anyone in a high risk group
or community should undergo yearly testing for TB utilizing
the PPD or mantoux. The mantoux protects you from TB disease
through early detection of TB infection.
Question:
Are they going to make me drink nasty fluids or stick
tubes down my throat for this test?
Answer:
Don’t worry - no tubes or repugnant beverages are
involved. When you receive the PPD, a tiny amount of testing
fluid (tuberculin) will be injected just beneath the skin
of your forearm, forming a small bubble. Two to three
days later, you will return to the Doctor’s office
for interpretation of your test.
Question:
What if my mantoux test comes out positive-then what will
happen?
Answer: A positive mantoux usually indicates infection
with TB. Your physician will likely order a chest x-ray
and sputum samples. These tests assay for active TB disease.
You may also be required to donate a blood and urine sample(CDC,
1994). Should the determination of active TB result, you
may be hospitalized in a private room. Alternately, you
may receive medications with instructions to remain home-bound
until your practitioner ascertains resolution of contagion.(CDC,1994)
Remember, most people with a positive PPD do not have
active TB disease.But, if you have active tuberculosis,
the importance of completing drug therapy can not be overemphasized
Prematurely quitting treatment is very dangerous. When
someone with TB abandons treatment, their TB can mutate,
evolving to acquire medication-resistant traits. Thereby,
early cessation of treatment results in the emergence
of multi-drug resistant strains of TB which are extremely
difficult to cure.
Question:
You said that TB was fatal in the 1800’s. Well,
I have a friend in a band who really does have TB disease.
Is he going to die?
Answer:
Nowadays, TB can be successfully cured. However, it is
imperative that your friend faithfully adhere to his treatment
program- a strict regimen of several anti-tuberculosis
medications for up to one year.
Question:
OK, I’ll tell him. Now, when my friend in the band
plays out, fans buy him beers. Can he drink beer while
he’s on this TB medicine?
Answer:
You raise a very important issue here. Alcohol and drugs
may have contributed to your friend’s diagnosis
of TB. According to the Mobile AIDS Resource Team(MART)
of Victory Programs, “drug users and alcoholics
are at great risk” for HIV and TB. This is because
alcohol and drugs cripple the immune system, impairing
the user’s natural defenses. Additionally, drug
users unwittingly expose themselves to tuberculosis because
“the places where people... go to cop put them at
risk for TB” (MART, Victory Programs). Intoxication
impairs judgement, which in turn contributes to the transmission
of TB, HIV and STDs.
Question:
You still didn’t answer my question - can he drink
beer or not while he’s taking this medicine?
Answer:
If your friend drinks alcohol while on the anti-tuberculosis
medications rifampin or pyrazinamide, he runs the risk
of serious liver damage. He could even die from drug and
alcohol induced hepatic necrosis (Lehne,1994).
Question:
Is there anyone who can help him deal with this medication-alcohol
mixing problem?
Answer:
Yes! He can call Hampshire Health Access through First
Call for Help at 413-256-0121. Your friend sounds like
a good candidate for DOT.
Question:
What is DOT, some new Political Party?
Answer: No, its D.O.T.- Directly Observed Therapy: a health
care worker in the community will work with a TB patient
for the entire duration of their treatment. DOT helps
people with TB to recover quickly. Together, the patient
and health care worker schedule where and when to meet.
The health care worker insures that the patient receives
medication on time, and intervenes to prevent adverse
medication side effects. DOT therapies also simplify treatment
by enabling the patient to take medication a couple of
times a week instead of every day (CDC,1994). For more
information about DOT, call the Division of Tuberculosis
Prevention and Control at 617-983-6970.
Question:
OK, I’ll tell my friend about this. But what if
my PPD is positive, and the doctor decides I don’t
need preventative medications like DOT. Should I be on
the lookout for any particular signs and symptoms?
Answer:
Yes. Be aware of and telephone your doctor if you experience
one or more of the following : weakness, pallor, fatigue,
fever, chills, chest pain, night sweats, poor appetite,
weight loss, and coughing with or without bloody sputum.
(CDC/ Monahan etal.,1994)
PATHOPHYSIOLOGY - GHON’S LESION, MILIARY TB
Question: I like to know why and how diseases work. What’s
happening in the body of someone with active and untreated
Tuburculosis?
Answer:
There are entire text books written on this one question.
A painfully brief depiction of TB’s pathophysiology
then: (a) a susceptible individual inhales a droplet nuclei
containing mycobacterium tuberculosis (b) the alveoli
(air sacs) of the lungs catch the bacillus - if the alveolar
macrophages win the contest between host and parasite,
no infection will occur. If the alveolar macrophages “lose
the fight”, cytotoxic cells are “recruited”
to the area. (c) the primary Ghon lesion develops at the
alveoli- this is a small grey-white area of inflammation
and consolidation; white blood cells called macrophages
differentiate - some become fighters (mycobactericidal)
and others become trappers (fibroblasts). The mycobactericidal
macrophages attempt to kill the TB; the fibroblast macrophages
encircle (trap) the primary lesion within a wall of “dense
connective tissue”. In this way, the characteristic
“granulomatous lesion” is formed. If the person
is immunocompetent (has a strong immune system), the lesion
hardens (fibroses/calcifies), the person will have a positive
mantoux test (infection) but will not have active disease
(there is still potential for reactivation and disease
in the future). If the person is immunocompromised (has
a weak immune system), then there will be several areas
of granulomatous consolidations. Liquefication necrosis,
in which a lesion spills its contents into a mainstem
bronchus- causes the formation of a cavity in the lung.
This cavity is uniquely suited to allow the tuberculosis
to multiply to the 8th power because “host defenses
are ineffectual” here. (Pathogenesis of tuberculosis,
Nardell, Harvard Medical School/ Monahan etal) This information
is just the tip of the iceberg- but clearly one sees that
TB has the potential to incur major damage if left unchecked.
RESURGENCE
Question:
You said that TB was practically eradicated by the mid-eighties.
How come its back? What happened?
Answer:
Several interrelated health threats contributed to TB’s
resurgence including HIV, STD’s, drug use, poverty,
and homelessness. Airplane travel introduces TB into disease
free communities by shrinking the global community. The
explosion of newfound poverty with decreasing access to
healthcare in the USA contributes to the resurgence of
TB. According to the NJMS National TB Center “the
highest incidences of TB are seen in those countries with
the lowest GNP” (1996). This statement directly
correlates squalor to TB. Once TB rates declined drastically
in the 1980’s, funding for the control and prevention
of this deadly disease was withdrawn. Subsequently, TB
rates have steadily increased. (TB- A Deadly Disease Makes
a Comeback, The American Nurses Association, 1993)
SIDEBARS
According to Servicenet’s Annual Report, 32 percent
of the people who visited the Northampton Cot Shelter
(from November 1, 1997-April 30, 1998) listed eviction
as their primary reason for homelessness. Another 32 percent
of guests at the Cot Shelter state that they are homeless
due to loss of income. So for 64% of people visiting the
Northampton Cot Shelter at Hawley Street, poverty was
the main reason for being homeless. This runs counter
to the myth that homelessness is a ‘lifestyle choice’,
or that the majority of homeless are mentally ill. Locally,
the escalating rates of homelessness with the concomitant
risk for acquiring Tuberculosis may be attributed to violent
economic disenfranchisement.
TB DISEASE VS. TB INFECTION
(extracted
from the “TB Teaching Tool”)
TB Infection vs TB Disease
Inactive TB Active TB
Skin test positive Skin test & culture positive
Chest x-ray normal Chest X-ray abnormal
No symptoms Symptoms
Not contagious Contagious
Give medication Give medication
*In
the past, TB was the number one cause of death in the
United States (CDC, 1994)
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