Health Ministry instructs people not to use antibiotic medicine when they have a fever.
Fifty-two people have died and over 48,000 affected by the dengue virus in Sri Lanka.
China reported another outbreak of deadly African swine fever late on Monday.
More than 30 workers faint at the Kai Neng leather products factory after one of them collapsed with a fever.
Cases of dengue fever have more than doubled in the first three months of 2018 if compared to the same period last year.
Ministry of Health warns that dengue fever cases could spike this year.