MONKEYPOX
All
you need to know
What is Monkeypox?
Monkeypox is a rare viral disease
that occurs mainly in the rain forest countries of central and West Africa. The
disease was first discovered in laboratory monkeys in 1958. Blood tests of
animals in Africa later found evidence of monkeypox infection in a number of
African rodents. The virus that causes monkeypox was recovered from an African
squirrel. Laboratory studies showed that the virus also could infect mice,
rats, and rabbits. In 1970, monkeypox was reported in humans for the first
time.
What is the cause of monkeypox?
Monkeypox is caused by Monkeypox virus, which belongs to the
orthopoxvirus group of viruses. Other orthopoxviruses that cause infections in
humans include variola (smallpox), vaccinia (used for smallpox vaccine), and
cowpox viruses.
What
are the clinical features of monkeypox?
In humans, monkeypox is similar to
smallpox, although it is often milder. Unlike smallpox, monkeypox causes lymph
nodes to swell (lymphadenopathy). The incubation period for monkeypox is about
12 days (range 7 to 17 days). The illness begins with fever, headache, muscle
aches, backache, swollen lymph nodes, a general feeling of discomfort, and
exhaustion. Within 1 to 3 days (sometimes longer) after the appearance of
fever, the patient develops a papular rash (i.e., raised bumps), often first on
the face but sometimes initially on other parts of the body. The lesions
usually develop through several stages before crusting and falling off.
The illness typically lasts for 2
to 4 weeks.
Is
monkeypox fatal?
Studies of human monkeypox in
rural Central and West Africa – where people live in remote areas and are medically
underserved – have reported case-fatality ratios of 1% to 10%.
How
do people get monkeypox?
Monkeypox can spread to humans
from an infected animal through an animal bite or direct contact with the
animal’s lesions or body fluids. The disease also can be spread from person to
person, although it is much less infectious than smallpox. The virus is thought
to be transmitted by respiratory droplets during direct and prolonged
face-to-face contact. In addition, it is possible monkeypox can be spread by
direct contact with body fluids of an infected person or with
virus-contaminated objects, such as bedding or clothing.
Is
there a treatment or vaccine for monkeypox?
Currently, there is no proven,
safe treatment for monkeypox. Smallpox vaccine has been reported to reduce the
risk of monkeypox among previously vaccinated persons in Africa. CDC is
recommending that persons investigating monkeypox outbreaks and involved in
caring for infected individuals or animals should receive a smallpox vaccination
to protect against monkeypox. Persons who have had close or intimate contact
with individuals or animals confirmed to have monkeypox should also be
vaccinated.
CDC is not recommending
preexposure vaccination for unexposed veterinarians, veterinary staff, or
animal control officers, unless such persons are involved in field
investigations.
What
kinds of animals can get monkeypox?
There is not enough information to
determine all the types of animals that may become ill with monkeypox. Until
more is known about this disease, it should be assumed that any mammal –
including common household pets (e.g., dogs, cats) and “pocket pets” (e.g.,
hamsters or gerbils) – could get monkeypox if exposed to another animal that is
infected.
What
are the signs of monkeypox in animals?
Illness in animals has been
reported to include fever, cough, discharge from the eyes, and enlarged lymph
nodes, followed by a bumpy or blister-like rash. Pets that have monkeypox also
may appear to be very tired and may not be eating or drinking. It is possible
that some animals may have only minimal signs of illness. Some animals have
died and others have recovered.
Can
my pet get the smallpox vaccine to protect it from monkeypox?
No, smallpox vaccination is not
recommended for pets.
If
my pet has monkeypox, what will happen to it?
If your vet determines that your
pet has monkeypox, he or she will probably recommend that the animal be
humanely euthanized to prevent further spread of this disease. This decision
may be difficult for you, but it is the best step for the safety of family,
friends and community.
Whale
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