Influenza infection, how to avoid and what to do during your stay in Japan

  In this video clip I explain how to avoid influenza infection and what to do when infected during your stay in Japan. You have to take rest at least for a week in the case of Influenza infection, however it is difficult when you on a trip. A healthy adult can  normally tolerate well Influenza infection. Nonetheless it can be lethal when you do not take proper rest.

When you experience earthquake in Japan, what to do

Earthquake is a daily event in Japan. In 2015 we experienced felt-earthquake 157 times in Tokyo. Most of the foreign travelers are not accustomed to earthquake. Some could have panic reaction when the earth strongly shakes. In this article, I will explain how to cope the large earthquake when you stay in Japan. Most of the Japanese cell phones are equipped with early earthquake warning system You can hear the warning tone sample in the following youtube address. When hear this tone, a big earthquake might come or it might not come. Anyhow you should prepare. You may have some extension time depending on the distance to the epicenter. You should immediately go to the entrance and open the […]

Gonorrhea infection

Today’s topic is one of the Sexually transmitted disease (STD), Gonorrhea. The number of reported Gonorrhea infection in Japan has been continuously decreasing since 2002. Nonetheless the chance of transmission is high, up to 30% per each sexual intercourse. Asymptomatic gonorrhea infection in genital and pharyngeal area is common. Sexually active persons with more than one sexual partner without protection have a greater risk. Gonorrhea causes urethritis in male and cervicitis in female. The typical symptom of the urethritis is purulent or mucopurulent discharge from the urethra hole and dysuria, difficulty in urination. Gonorrhea infection in women may result in pelvic inflammatory disease, infertility, ectopic pregnancy and chronic pelvic pain. Pharyngitis and conjunctivitis are also common. Concomitant Chlamydia infection is […]


Measles cases have been reported among the employee of Kansai International Airport, Osaka, Japan. Kansai International airport is the third largest airport in Japan. There are already 31 cases and the number is still increasing. Measles is lethal in some ceses and there is no specific therapy once infected. Measles is very contagious. Approximately 90 % of susceptible people will develope measles following exposure. Floating virus in the air can cause transmission. Vaccination is the only way to avoid it. The symptoms are fever, malaise, cough, coryza and conjunctivitis, followed by skin eruption. The incubation period is 6 to 21 days. It comes through respiratory mucosa or conjunctivae. If you plan to visit Japan, you should check your inoculation records. CDC […]


Sexually Transmitted Disease (STD) , Chlamydia infection

Sexually transmitted disease (STD) is of concern, when you travel in foreign countries. I am going to explain several STDs from today. Today’s topic is Chlamydia infection. Approximately 30% of Japanese female sex workers are infected with Chlamydia. 13.1% of Japanese female high school students and 6.7% of Japanese male students are asymptomatic Chlamydia carrier, respectively. Thus the risk of Chlamydia infection is high when you have sexual intercourse with Japanese women and men. Chlamydia infection is also noted in the Pharyngeal region and oral sex is also of some risk.   The majority of female Chlamydia infection is asymptomatic. The uterine cervix is most affected in women and the infection can cause pelvic inflammatory disease, which leads to infertility […]

If you play in a field in Japan, you should be careful

At present two serious tick related diseases are of concern in Japan. If you have a plan to take part in a field activity in Japan such as mountain climbing, you should be careful and you should prepare properly. Severe fever with thrombocytopenia syndrome (SFTS)is an viral infection which is mediated by tick. Main symptoms are fever, loss of appetite, nausea, vomiting, headache and muscle pain. There are no specific  therapy. Mortality is between 6.3 % and 30%. Other concern is tick-born encephalitis, which is common in Russia and central Europe. This disease can be prevented by a vaccination, however it is not available in Japan. Once infected there is no specific therapy. Recently several cases have been reported in […]