Ideally, the vaccination should be given 4 weeks before travel. A combined hepatitis A and hepatitis B vaccine is also available in Australia. It is given as a course of 3 doses of vaccine: one vaccination is given immediately, the second is given one month later, and the third is given 5 months after that.
Although Haemophilus influenzae is not the cause of influenza, it is still responsible for a number of different clinical diseases in humans. And since it is able to adapt to the penicillin binding protein, it has acquired a level of resistance to the different kinds of penicillin antibiotics. Haemophilus influenzae is a non-motile, Gram-negative, fastidious, non-spore forming, facultative anaerobic, rod-shaped bacterium.
Pathology. Haemophilus influenzae requires two growth factor which are X (hemin) and V (nicotinamide-adenine-dinucleotide). These two factors are related to the red blood cell, therefore when infection occurs red blood cell the first infected area resulting in the idea that humans are the only natural hosts.aemophilus influenzae is a small gram negative bacteria which is about 1x 0.3um in size and it also lack the presence of flagella and pili, which means it lack mobility. (6) Some of these bacteria contain polysaccharide capsule which function as protection and colonization.