Allergic bronchopulmonary aspergillosis
Smallpox<span> vaccine, the first successful vaccine to be developed, was introduced by Edward Jenner in 1796. He followed up his observation that milkmaids who had previously caught </span>cowpox<span> did not later catch </span>smallpox<span> by showing that inoculated</span>cowpox<span> protected against inoculated </span>smallpox<span>.</span>
The answer is 2000 calories. My guess is that is because you need to burn so many but gain so many to get energy. This is a way to not gain weight.
