Because is transmitted via blood-to-blood contact, the risk if transmission is considered extremely low in heterosexual relationships

man smoking, smoke, tuxedo suit, cigarette, gentleman, tobacco, bowtie, portrait, people, monochrome Format: JPEG JPEG Camera model: Canon EOS 5D Mark III Canon EOS 5D Mark III Shutter speed: 1/250s 1/250s Aperture: f/2.5 f/2.5 ISO: 1600 1600 Focal length: 50mm 50mm Color: Full color Full color Color space: sRGB sRGB Scene capture type: Standard Standard Image quality: 300 dots per inch 300 dots per inch Exposure mode: Auto exposure Auto exposure Exposure program: Aperture priority Aperture priority White balance: Auto white balance Auto white balance Metering mode: Pattern Pattern Orientation: Normal Normal Exposure bias: 0EV (0/1EV) 0EV (0/1EV) Megapixels: 12.4 MP 12.4 MP License: Free to use CC0 Free to use CC0 Uploaded: 22 December 2020 22 December 2020 Flash used: Auto mode Auto mode Image is in public domain, not copyrighted, no rights reserved, free for any use

This is one part of Virchows Triad, a group of three conditions that increase the risk of clotting, and it can occur during prolonged periods of immobility, such as extended travel or sedentary work
rgdal: Bindings for the Geospatial Data Abstraction Library
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