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Presentation transcript:

p534

Examples of the major categories of organisms that cause disease in humans. Except for the helminths (parasitic worms), pathogens are microorganisms that can be seen only with the aid of a microscope. (a) Viruses: common cold, (b) Bacteria: syphilis, (c) Fungi: athlete’s foot fungus, (d) Protozoa: Giardia lamblia, (e) Helminths: tapeworm. p536

Examples of the major categories of organisms that cause disease in humans. Except for the helminths (parasitic worms), pathogens are microorganisms that can be seen only with the aid of a microscope. (a) Viruses: common cold, (b) Bacteria: syphilis, (c) Fungi: athlete’s foot fungus, (d) Protozoa: Giardia lamblia, (e) Helminths: tapeworm. p536

Examples of the major categories of organisms that cause disease in humans. Except for the helminths (parasitic worms), pathogens are microorganisms that can be seen only with the aid of a microscope. (a) Viruses: common cold, (b) Bacteria: syphilis, (c) Fungi: athlete’s foot fungus, (d) Protozoa: Giardia lamblia, (e) Helminths: tapeworm. p536

Examples of the major categories of organisms that cause disease in humans. Except for the helminths (parasitic worms), pathogens are microorganisms that can be seen only with the aid of a microscope. (a) Viruses: common cold, (b) Bacteria: syphilis, (c) Fungi: athlete’s foot fungus, (d) Protozoa: Giardia lamblia, (e) Helminths: tapeworm. p536

Examples of the major categories of organisms that cause disease in humans. Except for the helminths (parasitic worms), pathogens are microorganisms that can be seen only with the aid of a microscope. (a) Viruses: common cold, (b) Bacteria: syphilis, (c) Fungi: athlete’s foot fungus, (d) Protozoa: Giardia lamblia, (e) Helminths: tapeworm. p536

Figure 16.1 The Human Lymphatic System and Its Functions The lymphatic system helps filter impurities from the body. Figure 16-1 p539

Figure 16.2 The Immune Response Some T cells can kill infected body cells. B cells churn out antibodies to tag pathogens for destruction by macrophages and other white blood cells. Figure 16-2 p540

Table 16-1 p543

Figure 16.3 Recommended Adult Immunization Schedule, by Vaccine and Age Group—United States, 2011 Figure 16-3 p544

Washing your hands often with soap and hot water for 15 to 20 seconds will help protect you from germs. When soap and water are not available, you can use alcohol-based disposable hand wipes or gel sanitizers. If using gel, rub your hands until the gel is dry; the alcohol in the gel kills the germs. p546

Getting a tattoo or a piercing can pose health risks, including bacterial infection and hepatitis. p550

Getting a tattoo or a piercing can pose health risks, including bacterial infection and hepatitis. Figure 16-4 p554

Hospitals can be dangerous places. MRSA spreads from patient to patient when hand washing is inadequate or when gloves or equipment are contaminated. p555

Ticks are responsible for the spread of Lyme disease. If you spot a tick, remove it as soon as possible with tweezers or small forceps. Put it in a plastic bag or sealed bottle and save it. If you develop a rash or other symptoms, take it with you to the doctor. p556

Although many people try to protect themselves by wearing face masks, there is no evidence that masks lower the risk of infection in open spaces. p557

Table 16-2 p559