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Did you know?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

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Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

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HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

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Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

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There are more nerve cells in one human brain than there are stars in the Milky Way.

Positive regulation of the lac operon by the catabolite activator protein (CAP) Positive regulation of the lac operon by the catabolite activator protein (CAP)
Gram-positive and Gram-negative bacteria. Gram-positive and Gram-negative bacteria.
A positive feedback loop. A positive feedback loop.
Positive and negative selection during T-cell development. Positive and negative selection during T-cell development.
The Mantoux tuberculin skin test. Positive reaction. The Mantoux tuberculin skin test. Positive reaction.
Positive and Negative Punishment Positive and Negative Punishment
Video: Brain Lobes Animation

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