HOME >> BIOLOGY >> NEWS
Mass vaccination unnecessary in the event of a large bioterrorist US smallpox attack

has helped us demystify the threat a bit."

Although smallpox has been eliminated as a naturally-occurring disease, the virus still exists in two approved laboratories in the United States and Russia. The Centers for Disease Control and Prevention classifies it as a "Category A" agent, presenting the greatest potential threat for harming public health if developed and used as a bioterrorist agent.

Smallpox is caused by the variola virus, which emerged thousands of years ago. Variola major, the most common form of the virus, is divided into four subcategories: ordinary (which accounts for about 90 percent of cases and has a fatality rate of about 30 percent), modified (which occurs in people who have been vaccinated and has a death rate of about 10 percent), and flat and hemorrhagic (both very rare and uniformly fatal).

According to the CDC, exposure to the variola virus is followed by an incubation period of seven to 17 days, during which people are not contagious and feel fine. The first symptoms emerge during what is called the prodrome phase, and they include head and body aches, fatigue, a high fever and, sometimes, vomiting. This phase lasts two to four days and at this point people may or may not be contagious. Then a rash emerges all over the body and grows increasingly severe over the next 20 or so days, eventually forming scabs; during this period people are contagious, particularly during the first seven to 10 days of the rash. The disease eventually resolves and contagion ends after all of the scabs have fallen off. People who survive are then considered to be immune from smallpox.

A person can become infected by prolonged, face-to-face exposure with someone who is contagious, direct contact with infected bodily fluids or a contaminated object, such as bedding or clothing, and exposure to an aerosol release.

Routine smallpox vaccination ended in 1972, which leaves at least 43 percent of the U.S. population unvaccinated, Longini
'"/>

Contact: Kristen Woodward
kwoodwar@fhcrc.org
206-667-5095
Fred Hutchinson Cancer Research Center
16-Oct-2006


Page: 1 2 3 4 5

Related biology news :

1. Fever after smallpox vaccination tied to individual genetic variations
2. What led to the Nigerian boycott of the polio vaccination campaign?
3. Resistance to chemotherapy in lung cancer, optimizing flu vaccination strategies
4. Moving wildlife detrimental to oral rabies vaccination project
5. From vomiting to vaccination: Food poisoning bug used to deliver cancer vaccine
6. Simple idea to dramatically improve dengue vaccinations
7. New technique points to safer, more efficient vaccination
8. Advisory Committee on Immunization Practices recommends hepatitis A vaccination for children
9. CDC announces new strategies to promote continued influenza vaccination
10. Newborn screening can cause unnecessary parental stress
11. Taking a supplement of glycine helps prevent degenerative diseases such as arthrosis or osteoporosis

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:1/6/2017)... 2017  Privately-held CalciMedica, Inc., announced that it ... of a novel calcium release-activated calcium (CRAC) channel ... Acute pancreatitis, sudden painful inflammation of ... can be very serious.  In severe cases it can ... hospital stays, time in the ICU and substantial ...
(Date:1/4/2017)... 2017  CES 2017 – Valencell , the ... announced the launch of two new versions of ... biometric sensor modules that incorporate the best of ... expertise. The two new designs include Benchmark BE2.0, ... and Benchmark BW2.0, a 2-LED version of its ...
(Date:12/20/2016)... , Dec. 20, 2016 The ... sharing, rental and leasing is stoking significant interest ... radio frequency technology, Bluetooth low energy (BLE), biometrics ... as the next wave of wireless technologies in ... access system to advanced access systems opens the ...
Breaking Biology News(10 mins):
(Date:1/17/2017)... ... 17, 2017 , ... Pono Ola , a mind-body wellness firm on ... the official launch of its much-anticipated Pono Board: a re-invented fitness and anti-fatigue balance ... for over a year, the patented Pono Board is the world’s only exercise balance ...
(Date:1/17/2017)... ... January 17, 2017 , ... Diagenode, a leading ... a collaboration with the Heidelberg University Hospital and the German Cancer Research Center ... the company’s successful launch of its CATS (Capture and Amplification by Tailing ...
(Date:1/16/2017)... ... January 16, 2017 , ... Appellate Court of ... on the appeal filed by India-based Dishman Pharmaceutical & Chemical Ltd. company (DPCL) ... and one of its Dishman Group’s 100% wholly owned New Jersey-based subsidiary Dishman ...
(Date:1/16/2017)... , Jan. 16, 2017  Eurofins Genomics today ... will allow more customers to receive their primers in ... or compromise in quality found with other providers. Express ... United States at no additional fee. ... routine genetic studies, including DNA sequencing, genotyping, site-directed mutagenesis, ...
Breaking Biology Technology:
Cached News: