Hepatitis B virus detected in paper currencies in a densely populated city of India: A plausible source of horizontal transmission?

Figure 5 Atomic force microscopy images of a hepatitis B virus-negative sample. A: Wide field of view of clumps of globular structures that look different from that seen in Figure 4A. These clumps share no resemblance with the structure of hepatitis B virus particles; B: Magnified view of the encircled region in Figure 5A in two different contrasts; C: 3D view of the clumps.