In this set are terrible diseases that have haunted mankind for thousands of years. However, thanks to the development of medicine most of these diseases can be cured or prevented. Let's learn more about these viruses.

Plague disease caused by the bacterium plague bacillus Yersinia pestis. There are two main forms of plague: bubonic and pneumonic. When lymph nodes are affected first, with the second - the lungs. Without treatment in a few days begins fever, sepsis, in most cases, death occurs. than in victory. "The first case reported July 26, 2009. Patient appealed to doctors in critical condition and died on July 29. 11 people who had contact with patients were hospitalized with symptoms of fever, two of them died, others feel satisfactory "- something like this message from China, now looks information on outbreaks of plague. Message from some European cities in 1348 would look like this: "In Avignon plague struck all, tens of thousands of them were no survivors. Corpses from the streets no one to clean up. " Everything in the world during that pandemic killed 40 to 60 million people. Planet experienced three plague pandemic, "Justinian" back in. 551-580 years, "Black Death" and the 1346-1353 pandemic's late XIX - early XX century. Periodically flared and local epidemics. With quarantine and disease fighting - in the era of late dobakterialnuyu - carbolic disinfectant dwellings. first vaccine at the end of the XIX century created by Vladimir Khavkin - man fantastic biography, a Jew from Odessa, Mechnikov student, former Narodovolets thrice goes to prison and expelled because of the policy of the Odessa University. In 1889, after Mechnikov he emigrated to Paris, where he began first as a librarian and then as an assistant at the Institut Pasteur. Khavkin vaccine doses used by tens of millions around the world until the 40-ies of XX century. Unlike smallpox vaccine, it is not able to destroy the disease, and the results were much worse: it reduces the incidence of 2-5 times, and mortality at 10, but it is still used, since there was nothing else. This treatment appeared only after the Second World War, when Soviet doctors used svezheizobretenny streptomycin at liquidation plague in Manchuria in 1945-1947 years. Actually, now used against plague all the same streptomycin, and the population in the outbreak were immunized with a live vaccine developed in the 30s. Today annually recorded up to 2.5 thousand cases of plague. Mortality - 5-10%. For decades, no epidemics, no major outbreaks. Difficult to say how serious role in this is actually treated, and how much - the system identification of patients and their insulation. After the plague before leaving people for decades.

2013 presented us with many different events in different areas. In this post will not be the next hill celebrities or horrific accidents and warrior all pretty well and sometimes even funny.
bring to your attention a selection of the most unusual, if not bizarre pictures from around the world over the past year.

Animals have always been considered wonderful creatures, which pleased, delighted and brightened up the most difficult periods of our lives. Some of them had to take actions, and even feats that will long be immortalized in our memories. It is about them today we will explain.

Groundhog Punxsutawney Phil. The most famous groundhog in the world, Punxsutawney Phil, also known by the full name of Punxsutawney Phil, Seer of Seers, Sage of Sages and the greatest predictor of weather, traditionally predicted the weather every year on February 2, Groundhog Day, beginning with the 1886 year. Surprisingly, some people believe that it is engaged in the present day is the same groundhog. Since these animals live an average of ten years, the groundhog would have to take regular doses of the elixir of life, to live more than a century. Marmot caring for a mysterious group of people called "The Inner Circle", and to predict the beginning of the ceremony, they also bring a marmot hat and tuxedo. Weather forecasting with marmots is probably derived from the German superstition, if the groundhog will come out on February 2 mink and sees his shadow, then winter will last another six weeks.

Every day in the world there are hundreds, maybe thousands of great street art works. Today I have prepared for you a selection of some of the best street drawings that have been made recently.

Many of us in the warm season draws to water. And you want to take a break from the stuffy city. And so we are trying to get on any coast.
And let's look at the life that boils on the coasts in different parts of the world.

May 9, 2013 at 19:11 A virtual tour of the most beautiful places and sights from around the world. Locations are selected randomly in different parts of the world, it is the nature, architecture, castles, fields and lakes, in general all that we constantly marvel at and admire.

would seem somewhat unusual sky over our head, if in place of the moon would be other planets in the solar system.

would seem somewhat unusual sky over our head, if in place of the moon would be other planets in the solar system.

Scientists still are mysteries of the history, which can not give a logical explanation. first stone calendar. These strange lines are at coordinates 40 ° 27'28 .56 "N, 93 ° 23'34 .42" E. There is not much information available about this "strange", but a beautiful mosaic of lines exists, it is carved into the desert province of Gansu Sheng in China. Some records indicate that the "lines" were established in 2004, but nothing is officially confirmed this assumption, it seems, is not detected. It should be noted that these lines are located near the Mogao Caves, which is a World Heritage Site. The lines are drawn for a very long distance, and at the same time retain its proportions, despite the curvature of the terrain.

photo competition Environmental Photographer of the Year 2013 - is one of the fastest growing photographic competitions in the world. It is dedicated to the environment, constantly changing and often volatile relationship between man and the natural world.