new outbreak It will end soon after the outbreak. Rather than spreading like wildfire, Hankin believed that there was a mysterious substance in the water. that can kill germs Before being flooded, however, until 20 years later, French scientists discovered that The mysterious substance is actually a virus called bacteria.

อ่านต่อได้ที่ : โรงเรียนบ้านร่องเจริญ นานาสาระ : แบคทีเรีย