1 – NPR has completed their short 3-part series on the history of infectious disease and humans. Take a watch, they’re very well done!
2 – There is a possible outbreak of Crimean Congo Hemorraghic Fever in Namibia. Two confirmed cases are reported, and health officials are being quarantined. The fever, caused by a Bunyavirus, has symptoms similar to Ebola, and is transmissible person-to-person.
Genetically it is most similar to the hantavirus.

Several cases have been reported every year ranging in location from the Balkans, to the Middle East, to Southern Africa.  The virus is primarily transmitted by a tick (the hyalomma tick). It is in the family of ARBOviruses (ARthropod-BOrne) like Zika and Dengue fever.

Namibian news release:
WHO Fact sheet on CCHF:

3 – Leptospirosis has come and gone in the Bronx – a rare, sometimes fatal disease has killed one and sickened two others early in 2017. The disease, caused by bacteria transmitted in rat urine, is a blood-borne pathogen and can lead to flu-like symptoms. Forbes summarized this outbreak (defined by the short time and physical proximity of cases, as you all remember) here: https://www.forbes.com/sites/robertglatter/2017/02/16/leptospirosis-reported-in-new-york-city-what-you-need-to-know/#62bea01e21b7

4 – An oldie but goodie – the Cough, caught on camera by Dr Gary Settles. His gas dynamics lab helps visualize invisible phenomena.
See the NYTimes 2008 writeup here: http://www.nytimes.com/2008/10/28/science/28cough.html