Covid-19 in Bangladesh claimed 31 more lives and infected 1,310 others in 24 hours till Tuesday morning, showing a slight increase in the number of fatalities and cases compared to the previous day.  On Monday, the country logged 25  Covid deaths and 1,212 cases. On Sunday, Bangladesh logged 21 deaths which is the lowest in four months. The fresh cases were detected after testing 9,186 samples. The daily case positivity rate rose to 4.49 percent from Monday’s 4.36 percent, said the Directorate General of Health Services (DGHS).  With this, the daily case positivity rate of Covid-19 in the country remained below 5 percent for the eighth consecutive day.  According to the World Health Organization (WHO), if the daily-case positivity rate remains at 5 percent or below for 14 days is considered to be safe for mass unlocking.  The fresh numbers took the total fatalities to 27,470 while the caseload mounted to 1,553,837, said the DGHS. However, the mortality rate remained static at 1.77 percent. The recovery rate remained unchanged at 97.43 percent with the recovery of 1,195 more patients during the period. So far, 1,513,876 people have recovered from the deadly virus infections, the DGHS added.