Is an acute, contagious and devastating disease in humans caused by Variola virus and have resulted in high mortality over the centuries.
An acute infectious disease due to poxvirus, marked by sustained high fever and the appearance of skin eruptions and pustules, leaving small, depressed, depigmented scars.
The first disease ever eradicated through human effort on a worldwide basis. The World Health Organization announced in 1979 that no diagnosed case had been found for over 2 years. No subsequent cases have been diagnosed since outside of the laboratory setting. The success of the eradication rests upon the development of a vaccine by Edward Jenner in 1798 is characterized by a severe viral infection that results in skin eruptions, fever, malaise, and frequently, death. Immunity is complete in over 97% of the people who were immunized.
A very serious, usually fatal, contagious disease caused by the pox virus, with a severe rash, leaving masses of small scars on the skin.
Highly contagious viral disease characterized by fever, weakness, and a pustular rash that may result in permanent scarring. The disease was once widespread, but since 1979 has been eradicated throughout the world as a result of vaccination programs. The virus is now believed to exist only in deepfreeze lockers in two laboratories in Atlanta (Centers for Disease Control) and Moscow.
An acute infectious disease that is caused by a virus. Due to the availability of an effective vaccine and a worldwide vaccination campaign, smallpox has not existed as a naturally acquired infection since 1977. The World Health Organization declared the disease officially eradicated throughout the world in 1980. When smallpox existed as a significant health threat, it was a contagious infection for those in very close quarters, characterized by a rash of small blisters filled with clear fluid. The virus causing smallpox was readily transmitted via exposure to the respiratory secretions of infected people, through direct contact with the lesions of the skin and mucous membranes, or by contact with materials such as clothing and bed linens that had been contaminated.
An acute infectious virus disease causing high fever and a rash that scars the skin. It is transmitted chiefly by direct contact with a patient. Symptoms commence 8-18 days after exposure and include headache, backache, high fever, and vomiting. On the third day, as the fever subsides, red spots appear on the face and spread to the trunk and extremities. Over the next 8-9 days all the spots (macules) change to pimples (papules), then to pea-sized blisters that are at first watery (vesicles) but soon become pus-filled (pustules). The fever returns, often causing delirium. On the eleventh or twelfth day the rash and fever abate. Scabs formed by drying out of pustules fall off 7-20 days later, leaving permanent scars. The patient remains infectious until all scabs have been shed. Most patients recover but serious complications such as nephritis or pneumonia may develop. Treatment with methisazone is sometimes effective, and an attack usually confers immunity. After a worldwide WHO-sponsored vaccination program, smallpox was officially declared to have been eradicated in 1979.
This is an acute, highly infectious disease due to a virus. Once it was one of the major killing diseases; however, in the 1960s the World Health Organization undertook an eradication scheme by means of mass vaccination. As a result, the last naturally occurring case was recorded in October 1977, and on 8 May 1980 the World Health Assembly confirmed that smallpox has finally been eradicated from the world.
An acute, highly contagious, and frequently fatal viral illness caused by the variola virus.
Measles, a highly contagious viral illness, is marked by symptoms such as fever, weakness, and the development of skin eruptions. These eruptions progress into pustules that eventually form scabs. As the scabs heal, they may leave behind lasting scars on the skin. Measles is known for its ability to rapidly spread from person to person, emphasizing the importance of vaccination in preventing its transmission and reducing its impact on public health.
A profoundly contagious illness caused by the variola virus, which was officially declared eradicated in 1980 due to a worldwide vaccination initiative.
Smallpox spread through person-to-person contact. It led to flu-like symptoms and was identified by a rash that extended across the body and progressed into fluid-filled blisters. These blisters crusted over and often resulted in indented scars. Serious complications encompassed loss of vision, pneumonia, and harm to the kidneys. Regrettably, no successful treatment was available for this ailment, which claimed the lives of as much as 40 percent of those it afflicted.
The eradication of smallpox was accomplished by means of collaborative global utilization of a notably efficient vaccine. Routine vaccination against smallpox has been halted worldwide. Nevertheless, there’s now contemplation of administering vaccinations under specific circumstances.
A highly infectious disease that starts with intense feverish symptoms and, in two to three days, leads to a skin rash that spreads across the body. This rash evolves from tiny red dots to blisters, which later fill with pus and eventually scab over. When these scabs fall off, they often leave behind small indentations or scars in the skin. The initial spots appear around day three, turning into pus-filled blisters by day six, and by approximately day twelve, they begin to crust. The time from exposure to the onset of symptoms ranges from 12 to 21 days. The only known way to combat this disease is through preventative vaccination. It’s also referred to as variola.