These cloud-like formations consist of red and orange desert sand that swept as a sandstorm through Timna Park in the Israeli Negev desert.
Now, scientists from the Israeli Weizmann Institute of Science have studied "the microbiome of dust, " explains study leader Yinon Rudich. Because bacteria adhere to the grains of sand and can be carried so miles through the air. Every sandstorm increases the concentration of bacteria in the air. A known health risk, because some of the bacteria can make you sick - such as Acinetobacter, which can cause pneumonia. In addition: some of the microorganisms are resistant to certain antibiotics, as Rudich and his team found out.
Photo: Weizmann Institute of Science© science.de - Xenia El Mourabit Display