div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=aids-undesirable-import-to-japanhtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: AIDS: Undesirable import to Japan loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader035vdocumentssitereader035viewer2022080107575068711a28ab0f07b02dabhtml5thumbnails1jpg width=140 height=200 divp© Nature Publishing Group1985pdiv