North Korean "ghostships" possible bio weapon?

Little Kim hasn't been shy about playing war games since Trump has been elected. Both taunting each other. In the last few weeks boats with North Korean bodies have washed up upon the Japanese beaches. The boats seem older, poor condition. The boats all had multiple bodies in them. The last one had 8 bodies. Source https://www.cbsnews.com/news/ghost-ship-japan-boat-washed-up-north-korea-eight-dead-bodies/

In the last 24 hours after weeks of not testing launches they also launched their highest missile yet.

Could it be that the boat is also a test. Testing a method to deliver a bio weapon. The Japanese always board the vessels. How much protection are they using? If it is a virus, bacteria, or ----- it could be a disastrous situation for the Japanese, along with plausible deniability for little Kim, well until he tells the world that it was him. But it wouldn't be a normal type of attack, but it has been done in the past by warring peoples.

Even if it is not a test, I am sure that like me, the North Koreans thought of it once they saw it on the news, for those in the regime allowed to watch an outside non state channel. Now the North Koreans know that the Japanese are more than able, willing, and trusting enough to board the boats, and load the corpses up and take them inland. How many people will be around those corpses without protection to the max. The Japanese would drop their guard after a few boats with bodies, and eventually might receive one with a bio weapon. The North Koreans lulling the Japanese into a relaxed state.

In my opinion the moment they see bodies, via drone, or ground bot, they need to torch it or isolate it, take it out of the water and flame it to the max. Not even worth taking the chances, plus again plausible deniability, it is thought they are North Korean, but they are not sure... it is thought they are fishermen who ventured too far because of food shortages. Besides the normal shortages we haven't heard of many new ones recently. Why so many boats in such little time?

Bless the people of Japan, and may the Universe bring peace to us all.

Little Kim, knock it off.

Further reading
"To those in close contact with the dead, such as rescue workers, there is a health risk from chronic infectious diseases which those killed may have been suffering from and which spread by direct contact, including hepatitis B and hepatitis C, HIV, enteric intestinal pathogens, tuberculosis, cholera and others."
Source Health risks from dead bodies - Wikipedia

Not to mention weaponized diseases that could look natural, like the plague. North Korea could argue that it is the Japanese's fault for picking up boats with random bodies.

-Q-