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Fighting Infectious Diseases
All about pathogens
Infectious Diseases Infectious Diseases Doenças Infecciosas 1 . Combatendo 1Fighting . Fighting Tudo sobre pcaused atógenos Infectious diseases are by invisible microorganisms that enter the body and multip All about pathogens All about pathogens
there. The history of immunology, which began in the 18th century with Jenner’s discovery vaccines, is also the history of the fight against infectious diseases. Thanks to the worldwid use of infecciosas the vaccinesão Jenner discovered, the disease smallpox has vanished. And thanks to th As doenças causadas por microrganismos invisíveis que entram no Infectious diseases are caused by invisible microorganisms that the enter the and body and mult Infectious diseases are caused by invisible microorganisms that enter body excellent vaccines that have developed since, weth areno safe fromXVIII a large multiply variety of i corpo e many se mulFplicam lá. A história da been imunológica, que começou século th there. The history of immunology, which began in the 18 century with Jenner’s discovery there. The history of immunology, which began in the 18 century with Jenner’s discovery of com a fectious descoberta de Jenner das vacinas, é também a história da luta contra as diseases. vaccines, alsohistory the history offight the against fight against infectious diseases. Thanks the worldw vaccines, alsois the of the diseases. Thanks to or, theto worldwide doenças infecciosas. Graças ao amplo uso da vacina que Jenner descobriu, a varíola The ismicroorganisms that cause infectious infectious diseases are called pathogens more commo use of the vaccine Jenner discovered, the disease smallpox has vanished. And thanks to desapareceu. E graças às muitas excelentes vacinas que foram desenvolvidas desde use ly, of the vaccine Jenner discovered, the disease smallpox has vanished. And thanks to germs. Pathogens include bacteria and viruses. Bacteria are single-celled and are a the few m many excellent vaccines that have vdeveloped been developed since, we arefrom safe afrom large variety então, ecrons stamos rotegidos dthat e uma grande dsince, e doenças infecciosas. many excellent vaccines have been we are safe largea variety of in- of in psize. (1 micron is 1/1000 ofariedade a millimetre.) fectious diseases. Os microrganismos que causam doenças infecciosas são chamadas de patógenos ou, fectious diseases. mais The comumente, germes. incluem bactérias e arevírus. Bactérias são The microorganisms that cause infectious diseases called pathogens or, more comm microorganisms thatPatógenos cause infectious diseases are called pathogens or, more commonorganismos de uma única células e possuem tamanho de micras. (1 mícron é 1/1000 ly, germs. Pathogens include bacteria and viruses. Bacteria are single-celled and are amifew ly, germs. Pathogens include bacteria and viruses. Bacteria are single-celled and are a few de um mcrons ilímetro). in (1 size. (1 micron is 1/1000 of a millimetre.) crons in size. micron is 1/1000 of a millimetre.) mm
So a virus is 1/1000 of the size Então, um vírus é of a bacterium.
virus
1/1000 do tamanho de uma bactéria
So a virus is So a virus is 1/1000 of the size 1/1000 of theThat’s size célula of a bacterium. of a bacterium. miniscule! Isso é minúsculo!
mm
mm
cell mm
bacteriummm mm mm
bactéria
cell
virus
mm
mm
virus
bacterium cell bacterium
That’s That’s miniscule! miniscule!
v Smallpox is an infectious disease caused by the smallpox virus. If you catch the disease, you get a fever of • A varíola é uma doença infecciosa causada pelo vírus da varíola (smallpox). Se você contrai a doença, 40 degrees and your whole body becomes covered in pustules and blisters. Many people used to die of você tem uma febre de 40 graus e seu corpo inteiro fica coberto de pústulas e bolhas. Muitas pessoas disease, butmthanks to Jenner’s not a singledperson has developed disease morreram this desta doença, as graças à vacina dvaccine, e Jenner, ninguém esenvolveu a doença dthe esde 1977. since 1977. v Virus is the Latin word for poison. In ancient Greece, Hippocrates used the word virus to mean a poison • Vírus é a palavra laFna para veneno. Na Grécia anFga, Hipócrates usou a palavra vírus para descrever causes um veneno que causa dan oença. vthat Smallpox isillness. infectious disease caused by the smallpox virus. If you catch the disease, you get a fever of v Smallpox is an infectious disease by the smallpox If you catch the disease, youpeople get a fever 40 degrees and your wholecaused body becomes coveredvirus. in pustules and blisters. Many used of to die of 40 degrees and yourbut whole body coverednot in pustules and blisters. Many people used tosince die of1977. this disease, thanks to becomes Jenner’s vaccine, a single person has developed the disease this disease, to Jenner’s vaccine, not a single person has developed disease since 1977. a poison v Virus isbut thethanks Latin word for poison. In ancient Greece, Hippocrates used the word virus to mean v Virus isthat thecauses Latin word for poison. In ancient Greece, Hippocrates used the word virus to mean a poison illness. 42 that causes illness.
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