Air sampling of smallpox virus

Ontogenesis of Human Smallpox Virus

THE VEGETATIVE STAGE OF DEVELOPMENT OF THE HUMAN SMALLPOX VIRUS IS DESCRIBED AS BEING COMPRISED OF FOUR SUCCESSIVE PERIODS: "without membrane" period; "open-cavity" period; "single-cavity" period; and "double-cavity" period. This classification is based on the organization of the virus membranes. This paper presents a description of the changes in virus structure during each period. It shows th...

Smallpox eradication. Destruction of variola virus stocks.

1. The global eradication of smallpox was confirmed in 1980 (resolution WHA33.3). From 1981 to 1986, WHO undertook a programme to implement the post-eradication policies contained in the 1979 report of the Global Commission for the Certification of Smallpox Eradication and endorsed by the Health Assembly in resolution WHA33.4. Progress was reviewed year by year from 1981 to 1984 by the WHO Comm...

Radioactive Particulate Air Sampling

Prevalence of smallpox and the trend of smallpox Inoculation in Fars in the first Pahlavi period

One of the infectious diseases that was widespread in Fars province during the first Pahlavi era (1925-1941) was smallpox. This disease spread in the early days of the Pahlavi dynasty in the cities of Fars province and its epidemic reached its peak in 1318 AD. Important measures were taken to control the disease, including smallpox inoculation. The smallpox inoculators tried to control the dise...

17th Century Variola Virus Reveals the Recent History of Smallpox

Smallpox holds a unique position in the history of medicine. It was the first disease for which a vaccine was developed and remains the only human disease eradicated by vaccination. Although there have been claims of smallpox in Egypt, India, and China dating back millennia [1-4], the timescale of emergence of the causative agent, variola virus (VARV), and how it evolved in the context of incre...