Question

state some common effect of pathogens

Answer 1

1) it can cause disease .2) some can be used to make medicines.3) and some can make useful things like curd and wine and bake bread

Answer 2

Every pathogen has a specific portal of entry into the body. Invasiveness (invading) of a pathogen is its ability to gain entry into the host and grow.
They spread viral diseases such as Influenza/Flu (which is an endemic, epidemic and oandemic), Common cold/Rhinitis (one of the most infectious disease), Small pox (It was an evil upriver viral disease which the WHO completely eradicated it in 1980), Yellow fever (viral fever transmitted from infected humans and infected animals both urban and jungle type respectively), Chicken pox (contagious and fomite transmitted eruptive viral disease more common and less severe in children than in adults), Measles (highly infectious eruptive viral disease of children below the age of 5), German measles (three day measles which are a milder form of measles occurs in all age groups), Mumps (acute infectious one type viral disease), Poliomyelitis/Polio/Infantile paralysis (highly infectious viral disease of infants and children that may attack adults also), Rabies/Hydrophobia (fatal viral disease transmitted to human being by biting/saliva of rabid dog or cat and other number of animals), Hepatitis (Infectious disease characterised by inflammation of liver with Hepatitis A, B, C, D and E), Toxic Hepatitis (caused by toxic chemicals hapatotoxins), Dengue fever (viral disease which is caused by viruses DEN-1, DEN-2, DEN-3 and DEN-4 and spread by female tiger mosquito or Aedes aegypti and related species), Chikungunya (temporarily debilitating disease caused by Alphavirus and spread through mosquitoes) and much more all have the ability to be contagious and virulent in nature (except some of them).