Covid 19

The COVID-19 is transmitted primarily through droplets. This means when an infected person coughs or sneezes, the tiny air sprays containing millions of the virus spurts out of the mouth or the nose respectively. 
WHO recently said that the droplets can remain suspended in the air for up to 45 seconds, depending on air conditions. 
This means a personal 45 seconds ahead of you, as you walk, can cough or sneeze and you inhale the droplets along with the virus as you zoom past where he was 45 seconds earlier. In another context, as you walk up or down the stairs, a person two floors ahead of you can still infect you.
You could walk around with sparkling clean hands with two brands of sanitizers and a pair of gloves but it will only take a breath of air for you to be infected.
The key intervention could have been mass use of surgical masks especially when in crowded or confined areas (matatus). To reduce the cost, the masks could be re sterilized using iron box, 0.5% Sodium hypochlorite (jik) or microwaving thus enhancing re-use. Hand hygiene could still help in reducing surface contamination.