| Anthrax
Anthrax is an acute infectious disease caused
by the spore-forming bacterium Bacillus anthracis. Anthrax most commonly
occurs in warm blooded animals, but can also infect humans. Anthrax is
most common in agricultural regions where it occurs in animals. These
include South and Central America, Southern and Eastern Europe, Asia,
Africa, the Caribbean, and the Middle East.
Who gets Anthrax?
When anthrax affects humans, it is usually due
to an occupational exposure to infected animals or their products.
Workers who are exposed to dead animals and animal products (industrial
anthrax) from other countries where anthrax is more common may become
infected with Bacillus anthracis. Anthrax in animals rarely occurs in
the United States. Most reports of animal infection are received from
Texas, Louisiana, Mississippi, Oklahoma and South Dakota.
How is Anthrax spread?
Anthrax infection can occur in three forms:
cutaneous (skin), inhalation, and gastrointestinal. Bacillus anthracis
spores can live in the soil for many years and humans can become
infected with anthrax by handling animal products from infected animals
or by inhaling anthrax spores from contaminated animal products. Anthrax
can also be spread by eating undercooked meat from infected animals. It
is rare to find infected animals in the United States.
What are the symptoms of Anthrax?
Symptoms of disease vary depending on how the
disease was contracted, but symptoms usually occur within seven days.
Cutaneous: Most anthrax infections occur when the bacterium enters a cut
or abrasion on the skin, such as when handling contaminated wool, hides,
leather or hair products (especially goat hair) of infected animals.
Skin infection begins as a raised itchy bump that resembles an
insectbite but within 1-2 days develops into a vesicle and then a
painless ulcer, usually 1-3 cm in diameter, with a characteristic black
necrotic (dying) area in the center. Lymph glands in the adjacent area
may swell. About 20% of untreated cases of cutaneous anthrax will result
in death. Deaths are rare with appropriate antimicrobial therapy.
Inhalation: Initial symptoms may resemble a common cold. After several
days, the symptoms may progress to severe breathing problems and shock.
Inhalation anthrax usually results in death in 1-2 days after onset of
the acute symptoms. Intestinal: The intestinal disease form of anthrax
may follow the consumption of contaminated meat and is characterized by
an acute inflammation of the intestinal tract. Initial signs of nausea,
loss of appetite, vomiting, fever are followed by abdominal pain,
vomiting of blood, and severe diarrhea. Intestinal anthrax results in
death in 25% to 60% of cases.
How soon do symptoms occur?
Symptoms of anthrax usually appear within 7
days after coming into contact with Bacillus anthracis bacteria.
How is Anthrax diagnosed?
Anthrax is diagnosed by isolating Bacillus
anthracis from the blood, skin lesions, or respiratory secretions or by
measuring specific antibodies to Bacillus anthracis in the blood of
suspected cases.
What is the treatment for Anthrax?
Doctors can prescribe effective antibiotics.
Usually penicillin is preferred, but erythromycin, tetracycline, or
chloramphenicol can also be used. To be effective, treatment should be
initiated early. If left untreated, the disease can be fatal.
How long is an infected person
infectious to others?
Direct person-to-person spread of anthrax most
likely does not occur.
Should an infected person be
excluded from work or school?
Since direct person-to-person spread of anthrax
most likely does not occur, an infected person need not be excluded from
work or school.
How can Anthrax be prevented?
An anthrax vaccine for use in humans is
available in the United States. It is indicated for individuals who come
in contact in the workplace with imported animal hides, furs, bonemeal,
wool, animal hair (especially goat hair), and bristles; and for
individuals engaged in diagnostic or investigational activities which
may bring them into contact with anthrax spores.
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What
is terrorism?
Terrorism
is the unlawful use of force against people or property in an effort to
intimidate or coerce a government and its population in the furtherance
of political or social objectives.
What
is bioterrorism?
Bioterrorism
is a terrorist activity that involves the intentional release of a
microbiological agent, either a bacteria or a virus, into the
environment.
How
was New Jersey preparing for a potential biological terrorist attack
before September 11, 2001?
For
the last several years, state agencies have been planning for the
possibility of a biological terrorism attack and improving their
collective response capabilities. We are more prepared today than we
were two years ago, and we'll be better prepared in the coming months.
In
September 1999, the New Jersey Department of Health and Senior Services
(DHSS) received a major grant from the federal Centers for Disease
Control and Prevention (CDC) as part of a national effort to respond to
the threat of bioterrorism. The $1 million, one-year grant, has been
renewed annually and can be renewed each year for up to five years. In
addition, the DHSS received state funds to support enhanced
surveillance, communications and laboratory testing services.
What
is the $1 million in CDC funding for bioterrorism being used for?
These
funds are being used to strengthen the state's overall public health
system so it can better respond to man-made threats, such as the
deliberate release of disease-causing organisms, as well as to naturally
occurring infectious diseases or newly emerging infectious diseases,
such as antibiotic-resistant organisms, West Nile virus and a potential
influenza pandemic.
The funds are being used in three areas: expanding surveillance programs
to more actively search for diseases and spot unusual disease
occurrences and/or trends; creating a 24-hour-a-day rapid communication
system linking all levels of government, the health care community and
emergency response personnel; and expanding laboratory capacity to test
for biological agents likely to be used in a terrorist attack.
Has
New Jersey implemented any stronger measures to fight potential
biological terrorism since September 11th?
Acting
Governor Donald T. DiFrancesco signed into law four bills on October 4,
2001 to increase anti-terrorism efforts and aid disaster victims and
their families, including one piece of legislation - the New Jersey
Domestic Security Preparedness Act that will create the New Jersey
Preparedness Task Force. Reporting directly to the Governor, the Act
commits nearly $9 million for improving response planning and crisis
management capabilities, fighting biological and chemical terrorism, and
providing statewide disease surveillance. Included is $1.8 million to
establish a program of laboratory services in the DHSS to provide for
the prompt and accurate detection and analysis of biological and
chemical agents that may be used in terrorist acts. The DHSS will also
receive $1.45 million to fund a program of disease surveillance and
investigation.
How
do other grants or programs at the DHSS currently support its
bioterrorism preparedness?
The
department has established an electronic communications system linking
it via e-mail to 22 public health agencies in the community who in turn
can quickly relay information to all local health officers, health care
facilities and other health care professionals and first responders in
their area. The DHSS has also received funding for the detection and
tracking of West Nile virus that has improved its ability to find and
respond to public health threats.
Does
the DHSS currently have the laboratory capacity to safely identify
bioterrorism agents submitted for testing?
The
state's Public Health and Environmental Laboratories (PHEL) were
expanded and upgraded over the past two years to make possible rapid and
accurate diagnostic testing for disease organisms such as those causing anthrax
and plague.
This included the renovation and conversion of 1,500 square feet of
laboratory space for specialized bio-containment testing. Through both
work experience and attendance at workshops presented at the CDC,
qualified DHSS staff is capable of performing tests for identifying a
number of potential bioterrorism agents.
In
response to the September 11th attacks, acting Governor DiFrancesco and
the New Jersey Legislature have committed new state funding to the DHSS
to hire more lab staff and purchase the equipment and supplies necessary
to perform rapid toxicity screening tests for unknown agents in human
blood and urine specimens.
Has
surveillance expanded for bioterrorism?
Active
disease surveillance is conducted statewide. Until now, particular focus
has been in three geographic areas: the City of Newark, and Bergen and
Middlesex Counties. Federal legislation designated Newark as one of the
120 cities in the United States vulnerable to a bioterrorist attack, and
Bergen and Middlesex Counties were chosen because of their strong public
health systems, industrial base and critical locations. In the very near
future, additional public health agencies will be funded to implement
enhanced surveillance activities.
How
does expanded surveillance in the three pilot sites work?
In
these three sites, public health specialists in local health departments
work more intensively with area hospitals, physicians and emergency
response workers to perform surveillance and epidemiological
investigations. For example, the public health specialists are frequent
visitors to area hospitals, and have developed close working
relationships with staff dealing with infectious diseases.
How
has DHSS improved surveillance statewide?
On
the state level, the DHSS has conducted, and will continue to provide,
training for the many organizations that could play a role in
identifying an unusual public health event, such as a bioterrorist
attack. These include local health departments, hospital workers,
clinical laboratories doing diagnostic testing, state agencies, medical
examiners and the New Jersey Poison Information and Education System.
Another
important aspect is the training of physicians in recognizing diseases
caused by acts of bioterrorism, and to train the medical and public
health communities in all aspects of bioterrorism detection and
response. Some of the training is being conducted through the state's
Distance Learning Network, which has been developed in partnership with
Rutgers University's Cook College. Learning sites have been designated
in each county - 60 sites in all - that can receive training programs
via satellite.
What
impact has the focus on bioterrorism had on our more routine disease
surveillance activities?
Through
the expanded surveillance and communication system, public health
officials can receive more timely information and determine if an
outbreak of food borne illness, or the emergence of an
antibiotic-resistant organism in a hospital, is a local or more
widespread problem. In the case of chemical spills, the system could
also be used to transmit information the DHSS maintains on hazardous
chemicals in the workplace, or information on how to best treat those
exposed to hazardous chemicals.
What
is the Health Alert Network?
New
Jersey, like other states, has created an internet-based communications
system called the Local Information Network Communications System-Health
Alert Network (LINCS-HAN), which connects the DHSS and 115 local health
departments in an around-the-clock system to transmit health alerts and
timely updates in an emergency. Local health departments, in turn, are
linked to health care providers, and community health and emergency
response agencies through e-mail and a rapid telefax system that is used
to communicate information and coordinate an emergency response.
Is
there a statewide bioterrorism response plan?
With
input from DHSS staff and many state and federal partners, an appendix
on bioterrorism has been drafted as part of the state's Emergency
Operation Plan. This plan defines the roles, responsibilities and
relationships among federal agencies, departments of state government,
and numerous volunteer agencies, drawing into its scope the capabilities
and resources of a multiplicity of responders. All efforts will be
coordinated with the newly established New Jersey Domestic Security
Preparedness Task Force, established in response to the events of
September 11th.
In
the event of a bioterrorism attack, what is the DHSS' role?
Through
the enhanced statewide disease surveillance system, the DHSS will play a
key role in identifying that an attack has occurred and notifying state
and federal authorities. The DHSS will then communicate with the
healthcare community directly through the Health Alert Network on steps
to be taken to address public health issues, while playing a major role
with direct caregivers in the surveillance and epidemiological response,
and actively support the law enforcement community.
How
was New Jersey's bioterrorism response plan activated during the World
Trade Center attack and did it work?
In
cooperation with the CDC, the DHSS on September 11th contacted local
health officers and hospital emergency departments and infection control
professionals and instructed them to heighten surveillance for any
unusual disease occurrence or increased numbers of illnesses that might
be associated with the events in New York City. This was done strictly
as a precaution and not in response to any specific threat. So far, we
have not had any reports of unusual or increased illnesses. There has
been no evidence to suggest that any chemical or biological agents were
used in the attack on the World Trade Center.
Is
smallpox vaccine available now or in the event smallpox is used in a
terrorist attack?
Naturally
occurring smallpox was eradicated in 1977. The only known remaining
samples of smallpox are under the control of the CDC and Russia. There
is no evidence that any rogue nation with biological weapons capability
has smallpox, therefore, the probability of a bioterrorist using
smallpox is extremely low.
The
only supply of smallpox vaccine in the United States is controlled by
the U.S. Public Health Service as an emergency 15 million-dose
stockpile. Smallpox vaccine is tightly controlled and only supplied to a
limited number of laboratory workers at risk of infection from
smallpox-like viruses as a result of their occupation. Government
agencies will not permit the release of smallpox vaccine to any other
person for any reason. The CDC has contracted with a major
pharmaceutical company to produce more smallpox vaccine.
Is
anthrax vaccine available now or in the event anthrax is used in a
terrorist attack?
Anthrax
is a naturally occurring yet very rare disease that is not transmitted
person-to-person. The vaccine against anthrax is not commercially
available to the general public except for United States military
personnel who might encounter anthrax in the course of armed conflict.
As reported in the news media, there has been some controversy over its
mandatory administration among some members of the U.S. military.
Should
citizens buy gas masks?
If
there were to be a bioterrorism attack, it would most likely be a covert
event. The initial indication of its presence will almost certainly be
the occurrence of illness in large numbers of individuals over a brief
time interval. By the time the attack has been recognized, exposure will
already have occurred some days to weeks previously. Therefore, there is
no utility in wearing a protective mask, and the restriction of airflow
with use might well exacerbate mild or emerging symptoms. Also, the
effectiveness of protective masks depends upon proper use and proper
maintenance; improper wearing of the mask with a poor seal over the face
may result in greater exposure to potential aerosols than wearing no
mask at all. Failure to keep the filters current results in no effective
filtration of infectious aerosol particles. Therefore, there is no
general indication for the public to purchase or consider wearing
protective masks to prevent exposure to biological aerosols delivered as
weapons.
Where
can I get more information on bioterrorism?
For
more information on this subject, visit the CDC's bioterrorism
preparedness website at www.bt.cdc.gov.
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Plague
Plague is an infectious disease of animals and
humans caused by a bacterium named Yersinia pestis.
Who gets Plague?
People usually get plague from being bitten by
a rodent flea that is carrying the plague bacterium or by handling an
infected animal. Millions of people in Europe died from plague in the
Middle Ages when human homes and work places were inhabited by
flea-infected rats. Wild rodents in certain areas around the world are
still infected with plague and outbreaks in people still occur. In the
United States, the last urban plague epidemic occurred in Los Angeles in
1924-25. Since then, human plague in the United States has occurred as
mostly scattered cases in rural areas. Most recent human cases in the
United States occur in two regions: northern New Mexico, northern
Arizona and southern Colorado; and California, southern Oregon and far
western Nevada.
How is Plague spread?
People usually get plague from being bitten by
a rodent flea that is carrying the plague bacterium or by handling an
infected animal or tissues from an infected animal. Plague can also be
spread from person to person, but only if the illness in the infected
person has spread to the lungs (pneumonic plague).
What are the symptoms of Plague?
The initial symptoms usually include fever,
chills, headache, muscle aches, and a tired feeling. This is followed by
a painful and reddened swelling of the lymph nodes in the region of the
body which suffered the flea bite (bubonic plague). A draining abscess
of one or more lymph nodes may develop. If the disease spreads to the
lungs, pneumonia with cough and some difficulty breathing may develop
(pneumonic plague).
How soon do symptoms occur?
Symptoms usually appear within 2 to 6 days
after a bite from an infected flea, or within 2 to 4 days after exposure
to an individual with pneumonic plague.
How is Plague diagnosed?
Plague is usually diagnosed based upon the
characteristic symptoms (painful and reddened swollen lymph nodes with
fever) and a history of possible exposure to rodents (such as camping in
areas inhabited by potentially infected rodents). The diagnosis is
usually laboratory confirmed by examination of sputum (in pneumonic
plague) or material aspirated with a needle from a swollen lymph node
(in bubonic plague).
What is the treatment for Plague?
Untreated bubonic plague can be fatal in over
half of the cases. Specific antibiotics are needed to prevent death, and
early diagnosis and treatment offers better success at preventing death
and other medical complications. However, despite modern antibiotic
therapy, many deaths still occur.
How long is an infected person
infectious to others?
Only patients with the pneumonic form of plague
can be a source of infection to others. A patient becomes non-infectious
to others after 48 hours on an appropriate antibiotic.
Should an infected person be
excluded from work or school?
An individual with pneumonic plague should be
excluded from work or school until he/she has completed 48 hours on an
appropriate antibiotic.
How can Plague be prevented?
Eliminate food and shelter for rodents
around homes, work places and recreational areas.
Pets (dogs and cats) should be treated for
flea control.
Persons working in high risk areas or high
risk occupations can be vaccinated with the plague vaccine.
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