Infectious diseases caused by viruses transmitted by ticks are increasing every year. In Japan, the number of cases reached a record high last year, and the first case of human-to-human infection was also confirmed.
"Ticks are becoming more common in our daily lives," experts warn. Here's what you need to know about the relationship between ticks and diseases before you go for cherry blossom viewing or hiking in spring. The highest number of infections recorded in Japan last year was the first time human- to-human transmission occurred.