(4)Famine: Perhaps aid workers in Ethiopia could have enlightened the scientists who starved baby animals, that early “under-nutrition” arrests childhood development.
Many of these problems arise from the mistaken belief that human findings must be replicated in the laboratory before they can be accepted. The 19th century microbiologist Robert Koch actually incorporated the idea into a set of rules for establishing proof that a specific germ caused the disease under investigation. When inoculated into animals, Koch argued, the microbe should reproduce the same condition seen in people. The concept was soon discredited by Koch’s own study of cholera1 but nevertheless remained influential. Only recently, the failure to induce AIDS in laboratory animals has been used as an argument against HIV as the cause.42
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