Review
Copyright ©The Author(s) 2016.
World J Gastroenterol. Feb 21, 2016; 22(7): 2271-2283
Published online Feb 21, 2016. doi: 10.3748/wjg.v22.i7.2271
Figure 1
Figure 1 Timeline of the number of papers about hepatitis E virus. Based on references found in PubMed when hepatitis E virus (HEV) was used as a search keyword. All the years prior to 1990 clustered at first time point. Awareness was more prominent following the demonstration of chronic hepatitis as caused by HEV. Arrows highlights first report of zoonotic transmission (left arrow), and the demonstration of chronicity due to HEV infection (right arrow).