Usually, you won’t show symptoms of smallpox for about 10-12 days after you've been exposed to someone infected with the virus. But the incubation period (the number of days it takes for symptoms to appear after you’re infected with the virus) can be as little as 7 days or as lon...
Smallpox is an acute, contagious disease caused by the variola virus, a member of the genus Orthopoxvirus, in the Poxviridae family (see the image below). Virologists have speculated that it evolved from an African rodent poxvirus 10 millennia ago. Because of the absence of an animal ...
W., Smallpox (variola major and variola minor), in: Virus and Rickettsial Diseases of Man, 4th ed. (S. Bedson, A. W. Downie, F. O. MacCallum, and C. H. Stuart-Harris), pp. 84–111, Edward Arnold Ltd., London, 1967. Google Scholar Downie, A. W., Smallpox, in: ...
Chickenpox is caused by the varicella-zoster virus (VZV) and spreads easily from person-to-person. According to theCenters for Disease Control and Prevention(CDC), chickenpox is highly contagious. If one person contracts the virus, up to 90 percent of those close to them may become infected. ...
The name monkeypox is, however, most likely a misnomer. Although the natural reservoir of Monkeypox virus has not been definitively identified, decades of observation and research point to the idea that the animal reservoir of this virus is probably a rodent and primates are merely incidental ...
Product Name:Smallpox Vaccine Synonyms: Smallpox Vaccine Acam 2000 Acam2000 Acam2000 (smallpox vaccine) CAS:860435-78-5 MF: MW:0 EINECS: Mol File:Mol File USE Smallpox vaccine is live vaccinia (cowpox) virus grown onthe skin of a bovine calf. Smallpox is a highly lethal and disfigu...
Smallpox(天花) is a dangerous disease which once(1) killed(kill) many people.However,in the late 20th century scientists fought the disease(2) successfully(success).People who have the smallpox virus can spread it to other people through their breath or saliva(唾液).The virus can live on ...
Smallpox, which have been known for thousands of years, is a viral infectious disease transmitted by droplets. Humans are the only reservoir of the virus. Following an incubation period of 1–2½ weeks the outbreak of the disease is characterized by fever and shivering fits. Later, vesicles...
The name monkeypox is, however, most likely a misnomer. Although the natural reservoir of Monkeypox virus has not been definitively identified, decades of observation and research point to the idea that the animal reservoir of this virus is probably a rodent and primates are merely incidental ...
Smallpox is aserious infectiousdisease caused by a virus that’s no longer found in nature.It was passed from person to person. People with smallpox had flu-like symptoms and a rash that would spread across their bodies. Smallpox was deadly. About 30% of people who got smallpox died. ...