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OUTBREAK!


                                                                                               BLACK
        Ever since people started living in large groups, they have
        been affected by outbreaks of disease. Epidemics affect whole
                                                                                              DEATH
        communities, while pandemics spread around the world. What
        made them more fearful was that no one had any idea what                            In only four years, the Black Death
        caused them. Today, we know that outbreaks of disease are                           out one half of the population. This
                                                                                            has spread across Europe, wiping
        caused by pathogens (germs) such as bacteria and viruses.                           dreadful disease, first reported in
        But, even with this knowledge, we are still vulnerable to attack.                  bloody black sores, and a painful
                                                                                           1347, causes a high temperature,
                                                                                           plague—a  disease  caused  by
                                                                                           death. It is believed to be bubonic
         SMALLPOX HITS                                                                    by fleas that bite infected rats.
                                                                                          bacteria that is passed to humans
          THE NEW WORLD





          The invasion of the “New World” by
                                      and
          conquistadors—adventurers
          soldiers from Spain and Portugal—
          has been a disaster for the Native
           American peoples. Since they arrived
           in the 15th century in search of gold
           and silver, the Europeans have spread
           diseases to which the native peoples
                                                                                       Two victims of the Black Death reveal
            have no resistance. The most deadly
            of these is smallpox—a viral disease
            that has already killed millions.                                         the horrible sores that cover their bodies.
                                                                                         CHOLERA
                   Native Americans hurl projectiles at                                 food and water contaminated with
                       armed Spanish conquistadors.
                                                                                         The 19th century has seen several
                                                                                        pandemics of this disease. Spread by

                                                                                        bacteria, cholera causes diarrhea and
                                                                                        vomiting and often kills its victims. It
                 NAPOLEON’S                                                            1817 and by the 1830s had spread to
                                                                                       first arrived in Europe from India in
                 ARMY FALLS                                                           poor and drinking water dirty.
                                                                                       the Americas. Cholera is more likely
                                                                                      to occur in cities where sanitation is















               Emperor Napoleon Bonaparte’s   cold and starvation, but most

             Emperor Napoleon retreats with the remnants of his Great Army in December 1812.
             The invasion of Russia by French
                                            died in battle and from bitter
            Great Army that began in April
                                           were killed by an epidemic
            1812 has ended in disaster. Of the
                                           of typhus. This disease is rapidly
            500,000 soldiers who headed for
                                           spread—especially in cramped
            Moscow, only 40,000 survivors
                                           and unsanitary conditions—by
            have returned to France. Many
                                           bloodsucking body lice.                location to tackle another outbreak of cholera.
                                                                                  Two public disinfectors pull their cart to a new
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